U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments:

2014 Update

Environmental Protection Agency 

Office of Pollution Prevention and Toxics

October 2014
U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments: 2014 Update 2

I. Overview

EPA is updating its list of existing chemicals for assessment under the Toxic Substances 

Control Act (TSCA); this is known as the TSCA Work Plan for Chemical Assessments. The changes to 

the TSCA Work Plan for Chemical Assessments reflect updated industry data submitted to EPA 

through the Toxics Release Inventory (TRI) in 2011 and the TSCA Chemical Data Reporting (CDR) 

requirements in 2012 on chemical releases and potential exposures. This is the first update to the TSCA 

Work Plan for Chemical Assessments, which EPA presented in early 2012. As newer data from TRI 

and CDR become available, EPA will update the TSCA Work Plan for Chemical Assessments. The 

Agency uses this Work Plan to focus the activities of the Existing Chemicals Program in the Office of 

Pollution Prevention and Toxics (OPPT) so that existing chemicals having the highest potential for 

exposure and hazard are assessed, and, if warranted, are subject to risk reduction actions.

EPA notes that identification of a chemical on the TSCA Work Plan for Chemical Assessments

does not itself constitute a finding by the Agency that the chemical presents a risk to human health or 

the environment. Rather, identification of a chemical on the TSCA Work Plan for Chemical 

Assessments indicates only that the Agency intends to consider it for assessment. The Agency believes 

that identifying these chemicals early in the review process would afford all interested parties the 

opportunity to bring additional relevant information on those chemicals to the Agency’s attention to 

further inform the assessment. 

Identification of chemicals for the TSCA Work Plan for Chemical Assessments does not mean 

EPA would not consider other chemicals for assessment and potential risk reduction action under 

TSCA and other statutes; for example, if a potential risk has been identified with a chemical or type of 

chemicals, EPA may consider these chemicals. EPA will consider other chemicals if warranted by 

available information. 

II. Background

The 2012 TSCA Work Plan for Chemical Assessments identified 83 chemicals for assessment 

by EPA as part of its chemical safety program. The screening process for identifying these chemicals is 

based on a combination of hazard, exposure (including via uses), and persistence and bioaccumulation 

characteristics, and is described in the TSCA Work Plan Chemicals Methods Document. The Agency 

continues to use this process, which focuses on chemicals that meet one or more of the following 

factors:

 Potential concern for children’s health (for example, because of reproductive or 

developmental effects)

 Neurotoxic effects

 Persistent, bioaccumulative and toxic

 Probable or known carcinogens

 Used in children’s products or in products to which children may be highly exposed

 Detected in biomonitoring programs.

EPA also considered other factors in determining whether a chemical should be included on the 

TSCA Work Plan for Chemical Assessments. Some chemicals identified as ‘high’ through this scoring 

system may not necessarily be practical candidates for assessment under TSCA when other information 
U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments: 2014 Update 3

is factored into the process. For example, the particular risks presented by certain chemicals may 

already be addressed by significant regulation under other statutes. 

III. 2014 Update to the TSCA Work Plan for Chemical Assessments

EPA updated the TSCA Work Plan for Chemical Assessments by using more recent 

information submitted in 2012 under the Chemical Data Reporting Rule (CDR) and data reported in 

2011 to the Toxics Release Inventory (TRI). These data were used to update the exposure ranking for 

the 345 existing chemicals that were generated under the two-step screening process used in the 2012 

TSCA Work Plan for Chemical Assessments. In 2012, the Agency used several sources to identify 

chemicals meeting prioritization factor criteria as potential candidates for review; a total of 1,235 

chemicals were identified. This group was screened to determine if any chemicals should be excluded 

because they are not subject to TSCA or there was already significant regulation under TSCA, or due to 

radioactivity, complex process streams, natural occurrence, or other properties. After these chemicals

were excluded, 345 chemicals remained as potential candidates and entered the second stage of the 

Work Plan screening, which scored them under three characteristics: hazard, exposure, and potential for 

persistence and bioaccumulation. Details of how chemicals were screened and criteria were used are in 

the TSCA Work Plan Chemicals: Methods Document. 

In addition to re-screening the 345 chemicals identified in 2012, EPA used the methodology 

developed for the TSCA Work Plan for Chemical Assessments to screen the Action Plan chemicals, 

which were not part of the 2012 TSCA Work Plan for Chemical Assessments, as well as two chemical

flame retardants identified during EPA’s development of a flame retardant strategy.

Based on this assessment, EPA is removing 15 of the original chemicals in the TSCA Work 

Plan for Chemical Assessments, consolidating one chemical, and adding 23 chemicals to the 2014 

update to the TSCA Work Plan for Chemical Assessments, including five Action Plan chemicals or 

groups. The TSCA Work Plan for Chemical Assessments: 2014 Update contains 90 chemicals. 

Completed Chemical Assessments

EPA has completed assessments for four chemicals that are on the TSCA Work Plan for 

Chemical Assessments: 

 Trichloroethylene (TCE): This risk assessment addresses trichloroethylene (TCE) as a 

degreaser, a spot-cleaner in dry cleaning and a spray-on protective coating. On June 25, 

2014, EPA released the final risk assessment that identified health risks to consumers 

using spray aerosol degreasers and spray fixatives and to workers when TCE is used as a 

degreaser in small commercial shops and as a stain removing agent in dry cleaning.

 Methylene Chloride or Dichloromethane (DCM): This risk assessment addresses 

methylene chloride in paint stripper products. On August 28, 2014, EPA released the 

final risk assessment that indicates health risks to both workers and consumers who use 

these products, and to bystanders in workplaces and residences where methylene 

chloride is used. 
U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments: 2014 Update 4

 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8,-hexamethylcyclopenta[γ]-2-benzopyran (HHCB): 

This risk assessment addresses ecological risks from HHCB as a fragrance ingredient in 

commercial and consumer products. On August 28, 2014, EPA released the final risk 

assessment that indicated no concern for this use of HHCB.

 Antimony Trioxide (ATO): This risk assessment addresses effects on ecological 

receptors from the use of antimony trioxide (ATO) as a synergist in halogenated flame 

retardants. On August 28, 2014, EPA released the final risk assessment that indicated no 

concern for this use of ATO.

a. Chemicals Added 

i. Action Plan Chemicals

From 2009 to 2011, EPA published ten chemical Action Plans. Five chemicals or groups of 

chemicals that scored ‘high’ under the methodology developed for the TSCA Work Plan for Chemical 

Assessments methodology for which EPA has Action Plans are now included in the TSCA Work Plan 

for assessment. EPA added the following Action Plan chemicals to the TSCA Work Plan for Chemical 

Assessments: 

 Bisphenol A (BPA)

 Decabromodiphenyl ether (decaBDE)

 Hexabromocyclododecane (HBCD)

 Nonylphenols and nonylphenol ethoxylates (NP/NPE)

 Group of phthalates (dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), di-(2-

ethylhexyl) phthalate (DEHP), di-n-octyl phthalate (DnOP), di-isononyl phthalate (DINP), 

di-isodecyl phthalate (DIDP), and di-isobutyl phthalate (DIBP) 

Though a July 2014 report provided to the U.S. Consumer Product Safety Commission (CPSC) 

by the Chronic Hazard Advisory Panel (CHAP) on Phthalates and Phthalate Alternatives provided a 

risk assessment for the eight phthalates described in EPA’s Action Plan, EPA is adding seven of these 

chemicals to the TSCA Work Plan for Chemical Assessments to determine whether any additional 

assessment is needed to supplement the report and address any TSCA-specific uses or exposure 

scenarios. One phthalate, di-n-pentyl phthalate (DnPP), is not being added since it is no longer in 

commerce.

Five of the ten Action Plan chemicals screened using the methodology of the TSCA Work Plan 

for Chemical Assessments will not be added to the TSCA Work Plan during this update. 

 Benzidine dyes are not being added to the 2014 update of the TSCA Work Plan for Chemical 

Assessments because they are only moderately persistent and bioaccumulative, and have not 

been found to be present in human biomonitoring. Thus, the current exposure potential is 

considered low. EPA will propose a Significant New Use Rule for these chemicals so that the 

Agency can review any new uses before they are introduced into commerce. 

 EPA has already begun risk management actions for long-chain perfluorinated chemicals

(PFCs), which rank high for hazard due to chronic and developmental toxicity. PFCs 
U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments: 2014 Update 5

bioaccumulate in wildlife and humans, and are persistent in the environment. Use of one 

subgroup of PFCs (sulfonates) was discontinued in the United States from 2002 to 2006; 

additionally, in 2006 EPA and the eight major companies in the industry launched the 2010/15 

PFOA Stewardship Program in which companies committed to reduce global facility emissions 

and product content of PFOA and related chemicals by 95 percent by 2010, and to work toward 

eliminating emissions and product content by 2015. However, EPA remains concerned about 

PFCs being produced by companies not participating in the stewardship program. Currently, the 

Agency is interested in gathering additional data regarding use of PFCs in imported articles 

before determining if these chemicals should be candidates for the assessment process. 

 The diisocyanates methylene diphenyl diisocyanate (MDI) and toluene diisocyanate (TDI) 

are not being added to the TSCA Work Plan for Chemical Assessments because they are not 

persistent and bioaccumulative, due to their reactivity, and are not found in house dust (factors 

considered in the Work Plan Methodology). EPA intends to issue a SNUR for TDI. Given the 

toxicity and potential exposure of these chemicals, EPA will consider if other risk management 

actions are needed for these chemicals. 

 EPA is not adding short chain chlorinated paraffins because they are no longer domestically 

produced or imported into the United States.

ii. Other Chemicals Added

In addition to the five Action Plan chemicals or groups being added, EPA is adding ten 

chemicals to the TSCA Work Plan for Chemical Assessments that in 2012 had been considered of 

moderate priority for assessment based on the TSCA Work Plan Methodology, and two chemicals that 

are part of a widely-used flame retardant.

Chemicals with an Increase in Score

Ten of the chemicals added are part of a group of 345 chemicals the Agency screened in 2012 

during the development of the TSCA Work Plan for Chemical Assessments. They are:

 1,3-Butadiene

 2,5-Furandione 

 2-Dimethylaminoethanol

 2-Hydroxy-4-(octyloxy)benzophenone 

 3,3’-Dichloro-benzidine

 4,4'-(1-Methylethylidene)bis[2,6-dibromophenol] (TBBPA)

 Barium carbonate

 Dicyclohexyl phthalate

 Molybdenum and Molybdenum Compounds

 Pentachlorothiophenol

In the scoring process for the 2012 TSCA Work Plan for Chemical Assessments, these ten 

chemicals received a score of ‘moderate.’ Recently submitted CDR and TRI data (in 2012 and 2011, 

respectively) indicate that they are being domestically produced or imported in greater quantities and 

are being used in a larger variety of consumer and children’s products, leading to an increase in their 
U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments: 2014 Update 6

exposure score and a subsequent increase in their final score to ‘high’ under Step 2 of the screening 

process identified in the Methods Document for the TSCA Work Plan for Chemical Assessments. 

Details of their scores and the reasons for adding them are available in the TSCA Work Plan for 

Chemical Assessments: 2014 Update (at the end of this document).

Like the group of phthalates included in EPA’s Action Plans (and described earlier), 

dicyclohexyl phthalate (DCHP) is also covered in the CHAP report on phthalates to CPSC. It also

scores high under the methodology of the TSCA Work Plan for Chemical Assessments and will also be 

evaluated by EPA to determine if there are TSCA-specific scenarios that should be assessed. 

Flame Retardants

Triphenyl phosphate (TPP) and isopropylated phenol, phosphate (iPTPP) are being added, 

though they were not among the chemicals screened in 2012. They came to the Agency’s attention as 

part of EPA’s analysis of flame retardant chemicals. Because TPP and iPTPP meet the screening 

criteria detailed in the methodology developed for the TSCA Work Plan for Chemical Assessments,

they are being added to the TSCA Work Plan for Chemical Assessments: 2014 Update.

b. Chemicals Removed or Consolidated 

Chemicals No Longer in Commerce

Of the original 83 chemicals in the TSCA Work Plan for Chemical Assessments, 67 had no 

change or had an increase in their potential exposure to people and the environment, and most continue 

to be on the TSCA Work Plan for Chemical Assessments. Thirteen chemicals are being removed from 

the TSCA Work Plan for Chemical Assessments because they are not currently in commerce based on 

data the Agency received under the CDR rule and as part of TRI reporting. Though these chemicals 

may be toxic, persistent and bioaccumulative, and may have been detected in human or environmental 

biomonitoring, they no longer present exposure potential from current consumer or commercial use.

Thus, they are being removed from the TSCA Work Plan for Chemical Assessments. The chemicals 

being removed are: 

 1,2,4,5-Tetrachloro-benzene

 4-Chloro-2-methylaniline (p-Chloro-o-toluidine)

 Benz(a)anthracene

 Dibenz(a,h)anthracene

 Dibromochloromethane

 Dichloroacetic acid

 Hexabromobiphenyl

 Hexachlorocyclohexane

 N-Nitroso-ethylamine

 N-Nitrosodimethylamine

 Pentabromophenol

 Polychlorinated naphthalenes

 Tris(2,3-di bromopropyl) phosphate (TBP)
U.S. Environmental Protection Agency October 2014

TSCA Work Plan for Chemical Assessments: 2014 Update 7

EPA will continue to review data submitted for these chemicals. If new data indicate that these 

chemicals have returned to commerce, the Agency will update the TSCA Work Plan for Chemical 

Assessments.

Special Cases

EPA is removing mercury and mercury compounds from the TSCA Work Plan for Chemical 

Assessments because their hazards are already well characterized and EPA has a strong risk reduction 

effort in place. Protecting human health and the environment by reducing exposures to mercury and 

mercury compounds remains a priority for EPA, and the Agency has taken and continues to take risk 

management measures for these chemicals, including efforts to implement the Minamata Convention. 

Therefore, the Agency does not believe that its risk management activities on mercury and mercury 

compounds need additional assessment under the process for the TSCA Work Plan for Chemical 

Assessments.

EPA is also removing quartz from the TSCA Work Plan for Chemical Assessments because it 

presents a hazard only in the context of silicosis from the inhalation of very fine crystalline dust 

particles, which might occur only during such occupational activities as sandblasting or stone cutting; 

these potential exposures are specifically controlled under regulations issued by the Occupational 

Safety and Health Administration. 

Polycyclic Aromatic Hydrocarbons

Benzo[a]pyrene is part of a group of polycyclic aromatic hydrocarbons (PAHs). EPA believes 

this chemical and other PAHs should be assessed as a category rather than as individual chemical 

substances. The exposure and release information EPA receives about PAHs is generally reported as a 

mixture of several PAHs, and not as individual chemicals. The Agency will evaluate several PAHs, 

including benzo[a]pyrene, as part of an assessment of creosote under the TSCA Work Plan for 

Chemical Assessments. Additional individual PAHs previously on the TSCA Work Plan for Chemical 

Assessments are being removed since they are no longer in commerce. 

c. TSCA Work Plan for Chemical Assessments: 2014 Update

See table on next page. 
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

1 Acetaldehyde Added 2012 Possible human 

carcinogen 

3 Used in consumer 

products

Present in drinking 

water, indoor 

environments, 

ambient air, and 

groundwater

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial 

Not yet initiated 75-07-0

2 Acrylonitrile Added 2012 Probable human 

carcinogen 

3 Widely used in 

consumer products

Present in indoor 

environments, 

surface water, 

ambient air, and 

groundwater

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Dispersive

Industrial 

Not yet initiated 107-13-1

3 tert-Amyl methyl ether Added 2012 Chronic toxicity

Central nervous 

system effects

Potential 

carcinogenicity 

to specific target 

organs

2 Widely used in 

consumer products

Present in drinking 

water, surface 

water, and ambient 

air

Estimated to have 

moderate releases 

to the environment

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 994-05-8

This document updates the June 2012 TSCA Work Plan for Chemical Assessment. The TSCA Work Plan Chemicals Methods Document explains the hazard, exposure, and persistence/bioaccumulation 

criteria, the data sources used, and how chemicals were scored. The 2014 Update describes why changes were made. 

TSCA Work Plan for Chemicals Assessments: 2014 Update

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 1
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

4 Anthra[2,1,9-def:6,5,10-

d'e'f'] diisoquinoline1,3,8,10(2H,9H)-tetrone 

(Pigment Violet 29)

Added 2012 Aquatic toxicity 3* Widely used in 

consumer products

Estimated to have 

moderate releases 

to the environment

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 81-33-4

5 Antimony & Antimony 

Compounds

Added 2012 Possible human 

carcinogen 

Developmental 

and 

reproductive 

toxicity Acute 

and chronic 

toxicity from 

inhalation 

exposures

3 Widely used in 

consumer 

products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, and 

soil

High reported 

releases to the 

environment

3 High environmental 

persistence 

Moderate 

bioaccumulation 

potential

3 Consumer

Industrial

Final 

assessment 

complete 

August 2014

Category

6 Arsenic & Arsenic 

Compounds 

Added 2012 Known human 

carcinogens

Neurotoxicity

Central nervous 

system effects

Acute and 

chronic toxicity 

from inhalation 

exposures

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, soil

High reported 

releases to the 

environment

2 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated Category

7 Asbestos & Asbestoslike Fibers Added 2012 Known human 

carcinogens

Acute and 

chronic toxicity 

from inhalation 

exposures

3 Widely used in 

consumer products

Present in indoor 

environments

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 2
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

8 Barium Carbonate Added 2014 Acute toxicity 3 Used to 

manufacture paper, 

special glass, 

ceramics, bricks, 

enamels, paints, 

rubber, electrodes, 

and barium salts; 

used in oil well 

drilling, especially 

through gypsum; 

used in brines as a 

precipitant

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Consumer 

Industrial 

Not yet initiated 513-77-9

9 Benzenamine Added 2012 Probable human 

carcinogen 

3 Used in consumer 

products

Present in ambient 

air, groundwater, 

and soil

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial 

Not yet initiated 62-53-3

10 Benzene Added 2012 Known human 

carcinogen 

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Dispersive

Industrial

Not yet initiated 71-43-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 3
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

11 Bisphenol A (BPA) Added 2014 Reproductive 

toxicity

3 Electrical and 

electronics 

equipment, optical 

media, linings in 

drinking water 

pipes, thermal 

paper coatings, 

automotive and 

transportation 

equipment

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Consumer 

Industrial 

Not yet initiated 80-05-7

12 1-Bromopropane Added 2012 Possible human 

carcinogen

3 Widely used in 

consumer products

Present in drinking 

water, indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

Estimated to have 

high releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Dispersive

Industrial

Initiated 2013 106-94-5

13 1,3-Butadiene Added 2014 Known human 

carcinogen

3 Major commodity 

product of the 

petrochemical 

industry, usually 

produced as a byproduct of ethylene 

Increasing usage in 

the formation of 

rocket fuels, 

plastics, resins, and 

commercial latex 

paints Reported 

uses in plastic 

products, textiles, 

apparel

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Consumer 

Industrial 

Not yet initiated 106-99-0

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 4
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

14 Butanamide, 2,2'-[(3,3'-

dichloro[1,1'- biphenyl]-

4,4'-diyl)bis(azo)]bis[N-

(4-chloro-2,5 -

dimethoxyphenyl)-3-oxo- 

(Pigment Yellow 83)

Added 2012 Acute toxicity 2 Used in consumer 

products

Estimated to have 

high releases to the 

environment

3 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer

Industrial 

Not yet initiated 5567-15-7

15 Butanamide, 2-[(4-

methoxy-2-nitrophenyl) 

azo]-N-(2-

methoxyphenyl)-3-oxo- 

(Pigment Yellow 65)

Added 2012 Aquatic toxicity 3* Widely used in 

consumer products

Estimated to have 

high releases to the 

environment

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer Not yet initiated 6528-34-3

16 Butyl benzyl phthalate 

(BBP) 

1,2-Benzenedicarboxylic acid, 1-

butyl 2(phenylmethyl) 

ester

Added 2014 Chronic aquatic 

toxicity

3 Most widely used 

stain-resistant 

plasticizer in 

poly(vinyl chloride)

Widely used in vinyl 

tile

Used in 

commercial/ 

industrial products

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 85-68-7

17 4-sec-Butyl-2,6-di-tertbutylphenolAdded 2012 Chronic toxicity 2 Widely used in 

consumer products

Estimated to have 

moderate releases 

to the environment

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 17540-75-9

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 5
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

18 Cadmium & Cadmium 

Compounds

Added 2012 Known human 

carcinogens

Chronic 

cardiovascular, 

renal and 

musculoskeletal 

effects

Acute and 

chronic toxicity 

from inhalation 

exposures

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, soil

High reported 

releases to the 

environment

3 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Consumer

Industrial

Not yet initiated Category

19 Carbon tetrachloride Added 2012 Probable human 

carcinogen 

3 Used in 

commercial/industri

al products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Industrial Not yet initiated 56-23-5

20 Chromium & Chromium 

Compounds 

Added 2012 Known human 

carcinogens 

Reproductive 

toxicity

Developmental 

toxicity

Acute and 

chronic toxicity 

from inhalation 

exposures

3 Used in commercial/ 

industrial products

Present in ambient 

air

High reported 

releases to the 

environment 

1 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Industrial Not yet initiated Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 6
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

21 Cobalt & Cobalt 

Compounds

Added 2012 Cardiovascular 

and central 

nervous system 

effects

Acute and 

chronic toxicity 

from inhalation 

exposures

3 Used in consumer 

products

Present in 

biomonitoring, 

surface water, 

ambient air, soil

High reported 

releases to the 

environment 

3 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Industrial Not yet initiated Category

22 Creosotes Added 2012 Probable human 

carcinogen 

3 Widely used in 

consumer products

Present in 

groundwater, soil

High reported 

releases to the 

environment

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Industrial Not yet initiated 8001-58-9

23 Cyanide Compounds 

(Limited to dissociable 

compounds) 

Added 2012 Neurotoxicity

Reproductive 

toxicity

Central nervous 

system effects

3 Widely used in 

consumer products

Present in drinking 

water, surface 

water, and soil

High reported 

releases to the 

environment 

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 7
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

24 Decabromodiphenyl 

ethers (DecaBDE)

Added 2014 Developmental 

toxicity

Aquatic toxicity 

3 Has been widely 

used in textiles, 

plastics and 

polyurethane foam 

as flame retardants 

Articles which were 

often treated with 

PBDEs include 

textiles such as 

carpets and 

upholstery fabric; 

cushions; plastics 

used as 

components in 

electrical 

appliances, 

devices, and 

equipment in 

consumer, 

commercial, and 

industrial use; and 

building and 

construction 

materials

3 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer 

Commercial 

Industrial 

Not yet initiated 1163-19-5

25 Dibutyl phthalate (DBP) 

(1,2-Benzenedicarboxylic acid, 1,2-

dibutyl ester)

Added 2014 Chronic aquatic 

toxicity

3 Used in cosmetics, 

medical supplies, 

textiles, propellant, 

food packaging, 

dental material, and 

paper

Used in the 

manufacture of 

plastics, paints, 

wood varnishes, 

and lacquers 

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 84-74-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 8
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

26 o-Dichlorobenzene Added 2012 Chronic toxicity 2 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air and 

groundwater

Moderate reported 

releases to the 

environment

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Dispersive

Industrial 

Not yet initiated 95-50-1

27 p-Dichlorobenzene Added 2012 Possible human 

carcinogen 

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

ambient air, surface 

water, groundwater, 

soil

Moderate reported 

releases to the 

environment 

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 106-46-7

28 3,3'-Dichlorobenzidine Added 2014 Probable human 

carcinogen 

3 Used in the 

production of dyes

2 Moderate 

environmental 

persistence

Low 

bioaccumulation 

potential 

2 Industrial Not yet initiated 91-94-1

29 3,3'-Dichlorobenzidine 

dihydrochloride 

Added 2012 Probable human 

carcinogen 

3 Used in consumer 

products

Relatively small 

reported releases to 

the environment 

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 612-83-9

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 9
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

30 1,1-Dichloroethane Added 2012 Mutagenicity 2 Used in consumer 

products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, 

groundwater, soil

Moderate reported 

releases to the 

environment 

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 75-34-3

31 1,2-Dichloroethane Added 2012 Possible human 

carcinogen 

3 Used in 

commercial/industri

al products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 107-06-2

32 trans-1,2-

Dichloroethylene

Added 2012 Chronic toxicity 2 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, 

groundwater, soil

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 156-60-5

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 10
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

33 1,2-Dichloropropane Added 2012 Acute 

mammalian 

toxicity

2 Used in consumer 

products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 78-87-5

34 Dicyclohexyl phthalate Added 2014 Acute and 

chronic aquatic 

toxicity 

3* Plasticizer; heat 

sealer for cellulose; 

heat sealer for 

paper finishes 

(labels, 

pharmaceutical 

labels, price labels)

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Consumer 

Industrial 

Not yet initiated 84-61-7

35 Di-ethylhexyl phthalate 

(DEHP) 

(1,2-Benzenedicarboxylic acid, 1,2-

bis(2-ethylhexyl) ester )

Added 2014 Chronic aquatic 

toxicity

3 Widely used in 

medical devices, 

such as intravenous 

tubing and blood 

bags

Widely used in 

consumer products 

and constructionrelated products

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 117-81-7

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 11
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

36 Di-isobutyl phthalate 

(DIBP) 

(1,2-Benzenedicarboxylic acid, 1,2-

bis-(2methylpropyl) 

ester)

Added 2014 Reproductive 

toxicity

1 Specialty plasticizer 

often combined with 

other phthalates

Used in printing 

inks 

Used in 

nitrocellulose, 

cellulose ether, and 

polyacrylate and 

polyacetate 

dispersions

2 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 84-69-5

37 Di-isodecyl phthalate 

(DIDP) 

(1,2-Benzenedicarboxylic acid, 1,2-

diisodecyl ester)

Added 2014 Developmental 

toxicity

3 Used in cosmetics, 

medical supplies, 

textiles, propellant, 

food packaging, 

dental material, and 

paper

Used in the 

manufacture of 

plastics, paints, 

wood varnishes, 

and lacquers 

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 26761-40-0

38 Di-isononyl phthalate 

(DINP) 

(1,2-Benzenedicarboxylic acid, 1,2-

diisononyl ester)

Added 2014 Developmental 

toxicity

2 Commonly used as 

plasticizer in 

poly(vinyl chloride) 

applications 

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 28553-12-0

39 1,2-Dimethoxyethane 

(Monoglyme)

Added 2012 Reproductive 

toxicity

Developmental 

toxicity

Chronic toxicity

3 Widely used in 

consumer products

Estimated to have 

high releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial 

Not yet initiated 110-71-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 12
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

40 2-

Dimethylaminoethanol

Added 2014 Acute toxicity 3 Intermediate in the 

synthesis of 

dyestuffs, textile, 

auxiliaries, 

pharmaceuticals 

and corrosion 

inhibitors, 

emulsifiers in paints 

and coatings Some 

uses in adhesives 

and sealants

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial Not yet initiated 108-01-0

41 Di-n-octyl phthalate 

(DnOP) 

(1,2-Benzenedicarboxylic acid, 1,2-

dioctyl ester)

Added 2014 Reproductive 

toxicity

2 Commonly used as 

plasticizer in 

poly(vinyl chloride) 

applications 

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial

Commercial

Consumer

Not yet initiated 117-84-0

42 1,4-Dioxane Added 2012 Possible human 

carcinogen 

3 Widely used in 

consumer products

Present in 

groundwater, 

ambient air and 

indoor environments

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Dispersive

Industrial 

Initiated 2014 123-91-1

43 Ethanone, 1-

(1,2,3,4,5,6,7,8-

octahydro-2,3,5,5-

tetramethyl-2-

naphthalenyl)-

Added 2012 Aquatic toxicity 3* Widely used in 

consumer products 

Estimated to have 

high releases to the 

environment

3 Moderate 

environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer

Industrial

Not yet initiated 54464-59-4

44 Ethanone, 1-

(1,2,3,4,5,6,7,8-

octahydro-2,3,8,8-

tetramethyl-2-

naphthalenyl)-

Added 2012 Aquatic toxicity 1* Widely used in 

consumer products 

Estimated to have 

high releases to the 

environment

3 Moderate 

environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer

Industrial

Not yet initiated 54464-57-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 13
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

45 Ethanone, 1-

(1,2,3,4,6,7,8,8aoctahydro- 2,3,8,8-

tetramethyl-2-

naphthalenyl)-

Added 2012 Aquatic toxicity 3* Widely used in 

consumer products 

Estimated to have 

high releases to the 

environment

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 68155-67-9

46 Ethanone, 1-

(1,2,3,5,6,7,8,8aoctahydro- 2,3,8,8-

tetramethyl-2-

naphthalenyl)-

Added 2012 Aquatic toxicity 3* Widely used in 

consumer products 

Estimated to have 

high releases to the 

environment

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 68155-66-8

47 Ethylbenzene Added 2012 Possible human 

carcinogen 

3 Used in consumer 

products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 100-41-4

48 Ethylene dibromide Added 2012 Probable human 

carcinogen 

3 Used in 

commercial/industri

al products

Present in drinking 

water, indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

Relatively small 

reported releases to 

the environment 

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 106-93-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 14
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

49 bis(2-Ethylhexyl) 

adipate

Added 2012 Possible human 

carcinogen 

3 Widely used in 

consumer products

Present in drinking 

water, and indoor 

environments

Estimated to have 

high releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 103-23-1

50 2-Ethylhexyl 2,3,4,5-

tetrabromobenzoate 

(TBB)

Added 2012 Developmental 

toxicity

Acute and 

chronic aquatic 

toxicity 

2 Used in consumer 

products

Present in indoor 

environments and 

soil

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Industrial

Initiated 2013 183658-27-7

51 bis(2-Ethylhexyl) -

3,4,5,6-

tetrabromophthalate 

(TBPH)

Added 2012 Developmental 

toxicity

Acute and 

chronic aquatic 

toxicity 

2 Used in consumer 

products

Present in indoor 

environments

Estimated to have 

moderate releases 

to the environment

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Industrial

Initiated 2013 26040-51-7

52 Formaldehyde Added 2012 Known human 

carcinogen 

3 Used in consumer 

products

Present in indoor 

environments, 

drinking water, 

ambient air, and 

groundwater

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 50-00-0

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 15
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

53 2,5-Furandione Added 2014 Acute and 

chronic aquatic 

toxicity 

3* Chemical 

intermediate for 

thousands of 

substances 

including lubricating 

oil additives, 

personal care 

products, 

adhesives, floor 

polishes, water 

treatment 

chemicals, 

detergents, paper 

sizing, epoxy curing 

agents, and leather 

treatment 

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Industrial Not yet initiated 108-31-6

54 Hexabromocyclododec

ane (HBCD)

Added 2014 Acute aquatic 

toxcity

3* Flame retardant in 

extruded 

polystyrene foam, 

textiles, and 

elctrical and 

electronic 

appliances

3 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer Initiated 2013 3194-55-6

55 Hexachlorobutadiene Added 2012 Possible human 

carcinogen 

3 Present in indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

Relatively small 

reported releases to 

the environment 

2 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Industrial Not yet initiated 87-68-3

56 1-Hexadecanol Added 2012 Chronic toxicity 2 Widely used in 

consumer products

Present in surface 

water, ambient air, 

and soil

Estimated to have 

high releases to the 

environment

3 Low environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Dispersive

Industrial 

Not yet initiated 36653-82-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 16
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

57 1,3,4,6,7,8-Hexahydro4,6,6,7,8,8-

hexamethylcyclopenta 

[g]-2-benzopyran 

(HHCB)

Added 2012 Developmental 

toxicity

2 Widely used in 

consumer 

products

Present in 

biomonitoring

Estimated to have 

high releases to 

the environment

3 Moderate 

environmental 

persistence 

Moderate 

bioaccumulation 

potential

2 Consumer

Dispersive

Final 

assessment 

complete 

August 2014

1222-05-5

58 2-Hydroxy-4-(octyloxy) 

benzophenone

Added 2014 Acute and 

chronic aquatic 

toxicity 

3* UV stablizer for 

polymers; used in 

rubber and plastic 

products Numerous 

food packaging 

uses (especially as 

a stablizer for 

petroleum wax)

3 Low environmental 

persistence

Low 

bioaccumulation 

potential 

1 Consumer 

Commercial

Not yet initiated 1843-05-6

59 Lead & Lead 

Compounds

Added 2012 Neurotoxicity

Developmental 

toxicity

Reproductive 

toxicity 

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, soil

High reported 

releases to the 

environment

3 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Consumer

Industrial 

Not yet initiated Category

60 Long-chain chlorinated 

paraffins (C18-20)

Added 2012 Chronic toxicity 

to target organs 

including the 

liver, kidneys 

and thyroid

Aquatic toxicity

2 Present in 

biomonitoring, 

surface water, and 

soil

Used in commercial/ 

industrial products

2 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Industrial 

Dispersive

Initiated 2012 Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 17
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

61 Medium-chain 

chlorinated paraffins 

(C14-17)

Added 2012 Chronic toxicity 

to target organs 

including the 

liver, kidneys 

and thyroid

Aquatic toxicity

2 Used in consumer 

products

Estimated to have 

high releases to the 

environment 

2 High environmental 

persistence

High 

bioaccumulation 

potential

3 Consumer

Dispersive

Industrial

Initiated 2012 Category

62 Methylene chloride Added 2012 Probable 

human 

carcinogen 

3 Widely used in 

consumer 

products

Present in drinking 

water, indoor 

environments, 

ambient air, 

groundwater, and 

soil

High reported 

releases to the 

3 Low environmental 

persistence

Low 

bioaccumulation 

potential

1 Consumer

Industrial

Final 

assessment 

complete 

August 2014. 

Pursuing risk 

reduction 

75-09-2

63 4,4'-Methylene bis(2-

chloroaniline) 

Added 2012 Known human 

carcinogen 

3 Widely used in 

consumer products

Present only in 

ambient air 

Relatively small 

reported releases to 

the environment

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 101-14-4

64 4,4'-(1-

Methylethylidene)bis[2,

6-dibromophenol] 

(TBBPA)

Added 2014 Acute aquatic 

toxcity

2* Flame retardant in 

epoxy resin circuit 

boards and in 

electronic 

enclosures

3 High environmental 

persistence

Low 

bioaccumulation 

potential 

2 Consumer Not yet initiated 79-94-7

65 N-Methyl-2-pyrrolidone 

(NMP)

Added 2012 Reproductive 

toxicity

3 Widely used in 

consumer products

Present in drikning 

water and indoor 

environments 

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer 

Industrial 

Initiated 2012 872-50-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 18
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

66 Molybdenum and 

Molybdenum 

Compounds

Added 2014 Chronic toxicity 1 Alloying agent in 

cast iron, steel, and 

super alloys to 

increase 

hardenability, 

strength, 

toughness, and 

corrosion 

resistance Used 

for electrical lead-in 

(in halogen lamps 

and electric 

furnaces) and wearresistant coatings 

for machine & 

engine parts Also 

used in glass and 

nuclear energy 

industries

3 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Consumer 

Industrial 

Not yet initiated Category

67 Naphthalene Added 2012 Possible human 

carcinogen 

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 91-20-3

68 2-

Naphthalenecarboxylic 

acid, 4-[(4-chloro-5-

methyl-2-sulfophenyl) 

azo]-3-hydroxy-, 

calcium salt (1:1) 

(Pigment Red 52)

Added 2012 Aquatic toxicity 3* Widely used in 

consumer products

Estimated to have 

moderate releases 

to the environment

2 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 17852-99-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 19
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

69 Nickel & Nickel 

Compounds

Added 2012 Known human 

carcinogens

Acute and 

chronic toxicity 

from inhalation 

exposures

3 Used in consumer 

products

Present in ambient 

air

High reported 

releases to the 

environment 

2 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated Category

70 N-Nitrosodiphenylamine Added 2012 Probable human 

carcinogen 

3 Used in consumer 

products

Present in surface 

water, groundwater, 

soil

Relatively small 

reported releases to 

the environment 

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 86-30-6

71 Nonylphenol and 

Nonylphenol 

Ethoxylates (NP/NPEs)

Added 2014 Reproductive 

toxicity 

Developmental 

toxicity Aquatic 

toxicity

3 In industrial 

detergents as well 

as other cleaners, 

degreasers (some 

for consumer use), 

and dry cleaning 

Industrial uses 

include petroleum 

dispersants, 

emulsifiers, wetting 

agents, adhesives, 

paper and textile 

processing 

formulations, 

prewash spotters, 

metalworking fluids, 

some paints and 

coatings, and dust 

control agents

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Commercial 

Industrial

Not yet initiated Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 20
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

72 Octamethylcyclotetrasiloxane (D4)Added 2012 Reproductive 

toxicity 

2 Used in consumer 

products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, and 

surface water

Estimated to have 

high releases to the 

environment

3 Moderate 

environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer

Dispersive

Industrial 

Initiated 2012 556-67-2

73 4-tert-Octylphenol

(4-(1,1,3,3-

Tetramethylbutyl)-

phenol)

Added 2012 Aquatic toxicity 3* Used in consumer 

products

Present in 

biomonitoring and 

drinking water

Estimated to have 

moderate releases 

to the environment

3 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer

Industrial 

Not yet initiated 140-66-9

74 p,p'-

Oxybis(benzenesulfonyl 

hydrazide)

Added 2012 Reproductive 

toxicity

Mutagenicity

3 Used in consumer 

products

Estimated to have 

moderate releases 

to the environment

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer Not yet initiated 80-51-3

75 Pentachlorothio-phenol Added 2014 Acute and 

chronic toxicity 

3 A mercaptan 

(sulfur) crosslinking agent that 

makes rubber more 

pliable

1 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Industrial Not yet initiated 133-49-3

76 Phenol, isopropylated, 

phosphate (3:1) 

(iPTPP)

Added 2014 Neurotoxicity

Aquatic toxicity 

3 Widely used as a 

flame retardant

3 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer 

Industrial 

Not yet initiated 68937-41-7

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 21
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

77 Phosphoric acid, 

triphenyl ester (TPP)

Added 2014 Acute and 

chronic aquatic 

toxicity 

3* Widely used as a 

flame retardant in 

polyurethane foam, 

PVC, printed wiring 

boards, children's 

products 

Applications in 

polymers in highimpact 

polystyrenes, epoxy 

resins, and 

adhesives (minor 

use)

3 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Consumer 

Industrial 

Not yet initiated 115-86-6

78 Phthalic anhydride Added 2012 Respiratory 

sensitizer

3 Widely used in 

consumer products

Present in 

groundwater and 

ambient air

High reported 

releases to the 

environment

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 85-44-9

79 Styrene Added 2012 Possible human 

carcinogen

Central nervous 

system effects

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, and 

groundwater, soil

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 100-42-5

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 22
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

80 Tetrachloroethylene 

(PERC) 

Added 2012 Probable human 

carcinogen 

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Dispersive

Industrial 

Not yet initiated 127-18-4

81 Tribromomethane 

(Bromoform)

Added 2012 Probable human 

carcinogen 

3 Used in consumer 

products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, and 

groundwater

Moderate reported 

releases to the 

environment 

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 75-25-2

82 1,1,2-Trichloroethane Added 2012 Possible human 

carcinogen 

3 Widely used 

consumer products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, 

groundwater, and 

soil

Moderate reported 

releases to the 

environment 

2 High environmental 

persistence

Low bioaccumulation 

potential 

2 Dispersive Not yet initiated 79-00-5

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 23
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

83 Trichloroethylene 

(TCE)

Added 2012 Probable 

human 

carcinogen

3 Widely used in 

consumer 

products

Present in drinking 

water, indoor 

environments, 

surface water, 

ambient air, 

groundwater, and 

soil

3 High environmental 

persistence

Low 

bioaccumulation 

potential

2 Consumer

Industrial

Final 

assessment 

complete June 

2014. Pursuing 

risk reduction 

79-01-6

84 Triglycidyl isocyanurate Added 2012 Reproductive 

toxicity

Mutagenicity

Acute toxicity 

from inhalation 

exposures

3 Widely used in 

consumer products

Estimated to have 

high releases to the 

environment

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 2451-62-9

85 Tris(2-chloroethyl) 

phosphate 

(TCEP)

Added 2012 Mutagenicity 

Limited evidence 

of 

carcinogenicity

2 Widely used in 

consumer products

Present in drinking 

water, and indoor 

environments

Estimated to have 

moderate releases 

to the environment

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial 

Initiated 2013 115-96-8

86 2,4,6-Tris(-tertbutyl)phenolAdded 2012 Chronic toxicity 

and liver effects

2 Widely used in 

consumer products

Present in indoor 

environments

Estimated to have 

moderate releases 

to the environment

2 Moderate 

environmental 

persistence

High 

bioaccumulation 

potential 

3 Consumer

Industrial

Not yet initiated 732-26-3

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 24
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

87 Vinyl chloride Added 2012 Known human 

carcinogen 

3 Used in consumer 

products

Present in drinking 

water, indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

Not yet initiated 75-01-4

88 m-Xylene Added 2012 Reproductive 

toxicity

Developmental 

toxicity

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 108-38-3

89 o-Xylene Added 2012 Chronic toxicity 3 Used in consumer 

products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 95-47-6

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 25
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

90 p-Xylene Added 2012 Reproductive 

toxicity

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

surface water, 

ambient air, 

groundwater, soil

High reported 

releases to the 

environment 

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial

Not yet initiated 106-42-3

Chemical Name

When was the 

chemical 

added and 

removed?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status or Other 

Action

CASRN

1 Benz[a]anthracene Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Present in 

biomonitoring, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, and 

soil

2 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Dispersive

Industrial 

No assessment 56-55-3

2 p-Chloro-o-toluidine Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Present in 

biomonitoring, 

surface water, and 

soil

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Industrial No assessment 95-69-2

3 Dibenz(a,h)anthracene Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Present in indoor 

environments, 

surface water, 

ambient air, 

groundwater, and 

soil

2 Moderate 

environmental 

persistence

Moderate 

bioaccumulation 

potential 

2 Dispersive No assessment 53-70-3

TSCA Work Plan Chemicals for Assessment: 2014 Update - Chemicals Removed or Consolidated

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 26
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

4 Dibromochloromethane Added 2012 

Removed 

2014

Possible human 

carcinogen 

3 Present in 

biomonitoring, 

surface water, 

ambient air, and soil

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Industrial No assessment 124-48-1

5 Dichloroacetic acid Added 2012 

Removed 

2014

Possible human 

carcinogen 

3 Used in consumer 

products

Present in drinking 

water

3 Low environmental 

persistence

Low bioaccumulation 

potential 

1 Consumer

Industrial 

No assessment 79-43-6

6 Hexabromobiphenyl Added 2012 

Removed 

2014

Possible human 

carcinogen 

3 Used in consumer 

products

Present in ambient 

air and soil

2 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Industrial No assessment 36355-01-8

7 Hexachlorocyclohexane Added 2012 

Removed 

2014

Possible human 

carcinogen 

3 Present in 

biomonitoring and 

surface water

2 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Industrial No assessment 608-73-1

8 Mercury & Mercury 

Compounds

Added 2012 

Removed 

2014

Neurotoxicity

Developmental 

toxicity

Chronic nervous 

system and 

hepatic effects

3 Widely used in 

consumer products

Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, soil

High reported 

releases to the 

environment

3 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Consumer

Industrial

No assessment Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 27
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

9 N-Nitrosodiethylamine Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Present in 

biomonitoring, 

surface water, and 

ambient air, 

groundwater, and 

soil

Relatively small 

reported releases to 

the environment 

2 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Industrial No assessment 55-18-5

10 N-Nitrosodimethylamine Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Widely used in 

consumer products

Present in drinking 

water, surface 

water, ambient air, 

groundwater, and 

soil

3 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Dispersive

Industrial 

No assessment 62-75-9

11 Pentabromophenol Added 2012 

Removed 

2014

Acute toxicity 3 Used in consumer 

products

Present in surface 

water and soil

2 High environmental 

persistence

Low bioaccumulation 

potential 

2 Industrial No assessment 608-71-9

12 Polychlorinated 

naphthalenes

Added 2012 

Removed 

2014

Acute dermal 

toxicity

Chronic liver 

effects

1 Widely used in 

consumer products

Present in 

biomonitoring

3 High environmental 

persistence

High 

bioaccumulation 

potential 

3 Industrial No assessment Category

13 Quartz (Respirable 

forms only) 

Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Widely used in 

consumer products

Present in drinking 

water

Estimated to have 

high releases to the 

environment

3 High environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer

Industrial

No assessment 14808-60-7

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 28
U.S. Environmental Protection Agency October 2014

Chemical Name

When was the 

chemical 

added?

Hazard Criteria 

Met 

Hazard 

Score

Exposure Criteria 

Met

Exposure 

Score

Persistence & 

Bioaccumulation 

Criteria Met 

Persistence & 

Bioaccumulation 

Score

Use 

Risk 

Assessment 

Status and 

Other Actions

CASRN

14 1,2,4,5-

Tetrachlorobenzene

Added 2012 

Removed 

2014

Chronic toxicity 3 Present in ground 

water and soil

1 Moderate 

environmental 

persistence

High 

bioaccumulation 

potential 

3 Industrial No assessment 95-94-3

15 Tris(2,3-dibromopropyl) 

phosphate 

(TBP)

Added 2012 

Removed 

2014

Probable human 

carcinogen 

3 Widely used in 

consumer products

Relatively small 

reported releases to 

the environment 

0 Moderate 

environmental 

persistence

Low bioaccumulation 

potential 

2 Consumer No assessment 126-72-7

16 Benzo[a]pyrene Added 2012 

Consolidated 

2014

Known human 

carcinogen 

3 Present in 

biomonitoring, 

drinking water, 

indoor 

environments, 

surface water, 

ambient air, 

groundwater, and 

soil

2 High environmental 

persistence

Moderate 

bioaccumulation 

potential 

3 Dispersive

Industrial 

No assessment 50-32-8

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014. 

Chemicals in bold have final risk assessments. 29