p•~

CHEMICAL HAZARD

DATA AVAILABILITY STUDY

What Do We Really Know About the Safety of High

Production Volume Chemicals?

EPA's 1998 Baseline of Hazard Information that is Readily

Available to the Publi c

Prepared by EPA's Office of Pollution Prevention and Toxics (April 1998)
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CHEMICAL HAZARD DATA AVAILABILITY STUDY

What do we Really Know About the Safety of High Production Volume Chemicals?

The 1998 Baseline of Hazard Information that is Readily Available to the PublbQ

This report presents the results of EPA's analysis of test data availability for 2,863 organic chemicals

produced or imported at or above I million pounds per year in the United States. The report includes

a chemical-by-chemical presentation of the hazard information available to the public on each of the

US High Production Volume (HPV) chemicals .

The US produces or imports close to 3,000 chemicals (excluding polymers and inorganic chemicals) at over

1 million pounds per year. A fundamental question concerns whether, and to what extent, basic toxicity

information is available to the public on these major commercial chemicals in the United States . One might

assume that basic toxicity information is available for these chemicals so that producers, users, workers, and

consumers could be aware and be able to evaluate the hazards and risks posed by the chemicals they

encounter in their daily lives . Based on results from a recent analysis done by EPA, this is not a prudent

assumption. EPA's analysis found that no basic toxicity information, i.e., neither human health nor

environmental toxicity, is publicly available for 43% of the high volume chemicals manufactured in the

US and that a full set of basic toxicity information is available for only 7% of these chemicals.

The lack of availability of basic toxicity information on most high volume chemicals is a serious issue for several

reasons . For EPA, the availability of hazard information on individual chemicals is fundamental to many of the

Agency's approaches to accomplishing its mission of environmental protection - risk assessment, safeguarding

children's health, expanding the public's right-to-know, and promoting the pollution prevention ethic . Longrange strategic planning at EPA has recently been formalized and expanded as a result of the Agency-wide

effort to implement the Government Performance and Results Act (GPRA) of 1993 . Strategic program

objectives under the Toxic Substances Control Act (TSCA) for EPA's Office of Pesticides, Prevention, and Toxic

Substances, incorporated into the Agency-wide strategic plan, call for EPA to significantly increase the

introduction by industry of safer or "greener" chemicals which will decrease the need for regulatory

management by EPA, and to improve the ability of the public to reduce exposure to specific environmental and

human health risks by making current, accurate substance-specific information widely and easily accessible .

Steps to ensure the availability of basic toxicity information on HPV chemicals would be an integral part of

meeting these objectives.

Congress acknowledged the need for data in identifying, controlling and preventing the possible hazardous

effects of chemicals on health and the environment when it passed TSCA (P .L. 94-469, October 11, 1976).

TSCA states that it is the policy of the US that manufacturers are responsible for testing chemicals, and the

Act gives EPA some authority to require chemical testing and impose controls as necessary . In practice,

implementation has been difficult for a variety of reasons and the rate of testing has been slow . It is time to fill

the gap in information about these high volume chemicals . US companies need to do much more testing and

generate basic toxicity assessments in a form that is publicly available and usable by consumers, community

groups, chemical users, and workers . Industry has committed to increase testing, but their progress has been

slow; meanwhile companies continue to reap significant profits from the production and sale of these HPV

chemicals .

What Tests are Necessary?

International authorities agree that testing in six basic endpoint areas (known as "basic tests" in this report) is

necessary for a minimum understanding of a chemical's toxicity . These tests cover: acute toxicity; chronic

toxicity; developmental and reproductive toxicity ; mutagenicity; ecotoxicity ; and environmental fate. This basic

level of testing and other information is called the Screening Information Data Set, or SIDS . The SIDS includes

information on the identity of the chemical, its physical and chemical properties, uses, sources and extent of

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exposure . The testing required is designed to answer basic questions about the chemical . For instance,

environmental fate testing can indicate whether the chemical degrades quickly in the environment and how

it is distributed throughout the environment . Acute toxicity testing is designed to measure how toxic the chemical

is from acute or one-time exposures, such as from accidental ingestion or skin contact . Other tests measure

the effects from longer exposures as might be encountered in the workplace or in communities near production

facilities, such as subchronic toxicity testing and mutagenicity tests (which could indicate a potential to cause

cancer). Tests are also required that measure the chemical's ability to interfere with reproduction (fertility) and

fetal development. Finally, a number of studies are required to indicate the potential for environmental effects

such as to fish, invertebrates, and aquatic plants should the chemical be released to water from production and

wastewater treatment facilities. While these tests do not fully measure a chemical's toxicity, they do provide

a minimum set of information that can be used to determine the relative hazards of chemicals and to judge if

additional testing is necessary .

Background

While there is much work to be done, it is true that some progress has been made in improving our

understanding of chemical hazards and risks in the past twenty years . The National Academy of Sciences

National Research Council (NAS/NRC, 1984) studied this question in the mid-1980s and concluded that

"minimal" toxicity information was available for only 22% of high volume chemicals .' The Organization for

Economic Cooperation and Development (OECD), recognizing this problem in the late 1980s, initiated a

voluntary program to assure that basic information is available on international high production volume (HPV)

chemicals (OECD, 1990). This program, known as the Screening Information Data Set or SIDS program, has

produced an internationally-agreed-upon set of screening tests2 and is working to complete the SIDS data set

for international HPV chemicals (OECD, 1998a) . To date, the OECD has initiated or completed work on over

300 HPV chemicals (OECD, 1998b) . The US has committed to handling 25% of the HPV chemicals as its

contribution to the OECD SIDS effort ; other countries have committed to handling chemicals in proportion to

the size of their gross domestic product . Because most of the international HPV chemicals are also

commercially available in the US, EPA considers the OECD/SIDS program to be an integral part of domestic

testing activities. EPA has committed to partnering with industry in the US and abroad to achieve the common

goal of accomplishing this minimum level of testing for HPV chemicals and will work with other parties

(international organizations, environmental groups, unions, other Federal agencies, environmental justice

groups and others) to secure their interest and support for this effort . Nevertheless, because of the slow pace

of the international efforts to generate the needed data, it will be necessary for the US to accelerate its efforts

in order to ensure the availability of the data needed to support US domestic efforts on chemicals .

Last year, the Environmental Defense Fund (EDF, 1997) reported in "Toxic Ignorance" the results of its analysis

of the availability of basic health test data on HPV chemicals and concluded that only 29% of the HPV

chemicals in the US met the minimum data requirements for health hazard screening established by the

OECD/SIDS program . Note that the percentages reported in EDF's conclusions were based on a selected

sample of 100 HPV chemicals, and deal only with human health hazard information, which is a subset of the

full SIDS described above. EDF subsequently challenged the US chemical industry to confront this issue and

1The National Research Council defined "minimal toxicity information" for industrial chemicals as the availability of an y

one or more of the five test types included in their study : acute toxicity ; subchronic toxicity; chronic toxicity ;

reproductiveldevelopmental toxicity; mutagenicity.

2 The OECD Screening Information Data Set consists of the following required tests :

Physical/Chemical Properties - melting/boiling point; water solubility; vapor pressure; octanoUwater partition coefficient ; water

solubility.

Environmental Fate - aerobic biodegradation .

Environmental Toxicity - acute toxicity to fish, Daphnia, and algae .

Toxicological Data - acute toxicity; repeated dose toxicity; genetic toxicity ; reproductive/developmental toxicity.

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accept the responsibility for assuring completion of and public access to health screening test data on HPV

chemicals .

The Chemical Manufacturers Association (CMA) conducted its own analysis of the sample of 100 HPV

chemicals and concluded that 47% of the chemicals had full SIDS health data sets - a conclusion which,

although quantitatively different from EDF's, is consistent with the viewthat significant basic testing requirements

remain to be filled for the HPV chemicals .

With regard to industry response to the EDF challenge, CMA, its member companies, and others in the US

chemical industry have expressed an interest and willingness to engage both EDF and EPA in a constructive

dialogue to address the significant issues raised in the "Toxic Ignorance" repo rt. CMA, on behalf of its member

companies, previously agreed to the policy adopted by the OECD that high production volume status alone is

sufficient to establish the need for a full SIDS data set. Unfortunately, there is a major inconsistency between

CMA's Responsible Care/Product Stewardship Program and the organization's w ritten commitment to the

OECD/SIDS program in that the Responsible Care/Product Stewardship codes do not include a commitment

to ensure that SIDS data sets are developed and made publicly available for HPV chemicals . Recent

developments indicate that CMA is conside ring a number of initiatives to increase industry participation in SIDS

testing, including increasing its volunta ry commitment to the SIDS program . CMA has also initiated an

expansive search effo rt to determine the actual amounts and types of SIDS data which are available for HPV

chemicals . These are encouraging signs, but must be followed by concrete actions .

EPA concluded that a comprehensive analysis looking at the full set of US HPV chemicals was needed to

determine the public availability of basic screening data on these chemicals . This baseline report is the result

of that analysis, and should clarify the magnitude of the problem and establish a basis against which future

improvements can be judged . EPA intends to update this search pe riodically to measure progress against

these initial baseline results.

EPA recognized the importance of and welcomed EDF's evaluation and its challenge to the chemical industry

on this critical issue. While the EDF report's challenge to US industry focuses on human health-related

infomiation, EPA believes that the full SIDS data set (which includes environmental fate and effects information)

is needed. EPA applauds the willingness of both EDF and CMA to join in this "constructive discussion" and the

Agency welcomes strong participation from other environmental groups and a broader range of stakeholders .

It is encouraging that these major organizations are in agreement with the basic message that more testing is

needed.

Method

The evaluation of the availability of hazard data for US HPV chemicals included a search for basic health and

environmental information on these chemicals, as well as a compa rison of available information for various

subsets of the 3,000 HPV chemicals. Important aspects to the current methodology include :

1 . The search for available hazard data was restricted to information in the Chemical Information

System (CIS, 1998).

2. Assessment of various subsets of chemicals (such as Toxic Release Invento ry chemicals, or

chemicals with an associated Occupational Health and Safety Administration Permissible

Exposure Limit) are based only on the subset of those chemicals identified as HPV.

3. The analysis focused on identifying "publicly available" data on these HPV chemicals . EPA

considered "publicly available" data as meeting the following requirements : that full

descriptions of the study method and the results obtained were accessible to the public . The

data can exist in the form of a journal article or as a publicly accessible study repo rt such as

a study submitted to EPA under section 4 or sections 8(d)/8(e) of TSCA. EPA recognized that

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while various publicly accessible databases point to the existence of test data (in the form of

brief data summaries), the studies cited in these data bases do not meet the requirement that

"full descriptions of the study method and the results obtained" were publicly accessible and

thus have not been included in this analysis .3

Creation of the US HPV Hazard Databas e

A database containing the results of a search for available hazard data on US HPV chemicals (excluding

polymers and inorganics) was created for use in this analysis . These chemicals are restricted to those for which

data were submitted to EPA under the 1990 TSCA Inventory Update Rule . TSCA chemicals do not include

cosmetics, drugs, food and food additives, pesticides, nuclear material, firearms, tobacco and tobacco

products. A brief description of the format of this database is provided in Appendix I . The database will soon

be available on EPA's Chemical Testing and Information High Production Volume website at

www.epa.gov/opptintr/chemtest/hpv.htm.

An extensive search for all publicly available hazard data was not conducted due to limited resources ; thus, the

search was restricted to information in the Chemical Information System (CIS) . It is noted that the search

strategy used in this study is not comprehensive and will have missed studies that were not included in the data

bases searched . Studies contained in databases which did not meet the criteria for Opublicly available" data,

such that full descriptions of the study method and results obtained were available to the public, have also been

excluded from the analysis .

The CIS was originally formed under joint contract to EPA and NIH, and is a publicly accessible commercial

vendor for nearly 100 databases. Among its varied topics, the CIS includes a number of different source

collections and datasets which document available data related to the SIDS test battery which served as the

basis for evaluating chemicals in these analyses . As noted, the six endpoints comprising the SIDS test battery

are acute toxicity, chronic toxicity, developmental and reproductive toxicity, mutagenicity, ecotoxicity, and

environmental fate . Details of the CIS search are presented below.

The Chemical Abstract Services (CAS) registry numbers for the approximately 3,000 HPV chemicals were used

to search the CIS databases . CAS numbers, as opposed to chemical names, were used as a matching criteria

because CAS numbers are uniquely assigned to chemicals, while chemicals are often known by multiple

names .

In addition to its multiple individual data sources which can be searched, the CIS contains a separate system,

known as the Structure and Nomenclature Search System (SANSS), that can be used to identify which of the

individual data sources contain information for a particular chemical . Although the SANSS is an easier way to

identify available information across all of the individual data sources, it is not updated as frequently as the

individual data sources. For this reason, some of the individual data sources (RTECS, TSCATS, IRIS,

GENETOX, AQUIRE, Phytotox, and Envirofate) were searched independently of the search that was performed

using SANSS. The eleven CIS-SANSS data sources which were used in the search for available hazard data

are listed below. Descriptions of each of the data sources are presented in Appendix II .

Registry of Toxic Effects of Chemical Substances (RTECS)

Toxic Substances Control Act Test Submissions (TSCATS)

Integrated Risk Information System (IRIS )

Chemical Carcinogenesis Research Information System (CCRIS)

GENETOX

3One example can be found in a paper prepared by the Chemical Manufacturers Association (CMA, 1997) which included

EUCLID, a data base prepared by the European Union . In many instances, the information which is available on studies included in

EUCLID is limited to the summary provided in the database, thus additional documentation as to the study method and details on the

results is not publicly available for many of the studies .

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Environmental Mutagen Information Center (EMIC )

Environmental Teratology Information Center (ETIC)

Catalog of Teratogenic Agents (CTA)

Aquatic Information Retrieval Database (AQUIRE)

Phytotox

Envirofate

For each SIDS endpoint, Table A lists the individual data sources which were searched, along with the specific

keywords used, where applicable .

Table A. Individual Data Sources Searched for Available Hazard Data on Each

SIDS Test Component

SIDS Test Component Data Source Search Keyword

Acute Toxicity RTECS TOX

TSCATS HE-ATOX

Chronic Toxicity TSCATS HE-CTOX

IRIS HAZ RfD

Developmental & Reproductive RTECS TER

Toxicity TSCATS H E-RTOX-TE RA

ETIC

CTA

Mutagenicity RTECS MUT

TSCATS HE-GTOX

GENETOX

EMIC

Ecotoxicity AQUIRE

TSCATS EE-ATOX, EE-CTOX, EE-RTOX

Phytotox

Environmental Fate TSCATS EF

Envirofate

This analysis focused on a "best case" scenario in that credit for data availability was given to several

endpoints even though the complete SIDS testing requirement for that endpoint may not be met .

Specifically, for reproductive/developmental toxicity, mutagenicity, ecotoxicity, and environmental fate

tests, the analysis accepted the availability of at least one test in each endpoint area as being sufficient

to suggest that the SIDS need was filled ( in fact, multiple tests are required to fulfill the SIDS test

requirements for these endpoints). In addition, no assessment of data quality was made for the data

located in the various searches . The mere existence of data meeting the publicly available

requirements warranted an "X" in the column for an endpoint . Thus, the analysis only points to the

availability of information.

What Basic Screening and Testing Has Been Done : Overview of Result s

Tables/Figures 1 and 2 presented in Appendix III provide highlights from the analysis of US HPV

chemicals to determine the availability of key test data. Examination of these tables and figures leads

to the following obse rvations : 43% of the US HPV chemicals (1,216 of 2,863) are identified as

having pQ SIDS test data (Le., no basic screening data) of any type available and only 7% of the

chemicals (202 of 2,863) are reported as having data available for all of the SIDS data types.

These statistics indicate that there are many US HPV chemicals for which numerous SIDS data

gaps exist and that there is a continuing need for significantly expanded testing efforts by US

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chemical companies to deal with this important problem.

Some 277 of the 2,863 U .S. HPV chemicals are part of the ongoing OECD SIDS international testing

program, in which companies in various countries around the world have voluntarily agreed to conduct

the SIDS battery of tests on selected chemicals. Most of the OECD SIDS test data are not yet publicly

available, but they will become accessible as they are incorporated into existing databases . Some 46

of the 277 U.S. HPV chemicals have already completed the SIDS test battery under the OECD

program. For 9 of those chemicals, all of the test data are publicly available (and are included in the

counts listed in Table 2); for the remaining 37 completed chemicals, one or more of the tests, while

complete, are not yet available through the publicly accessible databases searched in this study.

Adding these 37 chemicals to the number of chemicals for which all SIDS data are available (202

chemicals) increases the percentage of fully-tested chemicals from 7 .1 % to 8.3% .

Com parisons to Other Studie s

The National Academy of Sciences National Research Council (NAS/NRC, 1984) studied the

availability of "minimal toxicity information" for existing chemicals in the TSCA inventory in the mid1980s . NRC defined "minimal toxicity information" for industrial chemicals as the availability of any one

or more of the five test types included in their study . The first column of Table 3 shows the availability

of hazard data information for 259 US HPV chemicals based on the analysis conducted by NAS/NRC

in 1984. This information was extracted from Auer and Gould (1987) . NRC concluded that one of five

toxicity tests (acute toxicity, subchronic toxicity, chronic toxicity, reproductive/developmental toxicity, and

mutagenicity) was available for only 22% of the randomly selected set of 259 HPV chemicals . In

contrast, EPA's current analysis located at least one of the human health hazard data components for

55% of the 2,863 HPV chemicals. A more direct comparison can be made by comparing the percent

of chemicals with test data for a specific hazard endpoint . For instance, NAS/NRC located information

on acute toxicity for only 20% of the 259 HPV chemicals . In contrast, EPA's current study was able to

find test data on acute toxicity for almost 50 percent of the 2,863 HPV chemicals .

In 1997, the Environmental Defense Fund (EDF) reported in "Toxic Ignorance" (EDF, 1997) the results

of its analysis of the availability of basic human health test data on a sample of 100 HPV chemicals .

The Chemical Manufacturers Association (CMA, 1997) conducted its own analysis of these same 100

HPV chemicals to determine whether there are additional publicly available data which were not

reflected in the EDF report . Their results of these analyses on the EDF 100 HPV chemicals and EPA's

analysis results on the 2863 HPV chemicals are summarized in Table 3 .

EDF's analysis estimated that only 29% of the 100 HPV chemicals met the minimum data

requirements for health hazard screening established by the OECD/SIDS program . On the other hand,

CMA concluded that 47% of the chemicals had full SIDS health data available . EPA's analysis

estimated that only 9% of all 2863 US HPV chemicals met the data availability requirements for human

health hazard screening .

EPA's investigation of the extent to which hazard data is available for the nearly 3000 US HPV

chemicals is proceeding . However, the results to date indicate that significant and serious data gaps

do exist related to the availability of hazard information for many of the chemicals most widely used in

the United States. An examination of Table 3 indicates that while the conclusions of previous studies

and EPA's current assessment are quantitatively different, they are consistent with the view that

significant basic testing requirements remain to be filled for the HPV chemicals . Table 3 also indicates

that this remains true even though the amount of hazard information that is publicly available for US

HPV chemicals has substantially increased in the past decade .

HPV Chemicals and Right-to-Know - What Information Is Readily Available to Communities?

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Test Data Availability of Selected Chemicals in the Toxic Release Inventory TRI Database

The Toxic Release Inventory (TRI), initiated by EPA in 1987, provides information to the public on

releases and other waste management information for more than 600 chemicals and chemical

categories from certain industry sectors . Facilities report their TRI information annually to EPA . The

information includes : the amounts of each listed chemical released to the environment at the facility ;

amounts of each chemical shipped offsite for recycling, energy recovery, treatment, or disposal ;

amounts of each chemical recycled or burned for energy recovery, or treated at the facility ; and

maximum amounts of the chemical present at the facility during the year. With this information,

communities know what toxic chemicals are present in their neighborhoods, and facility managers can

identify opportunities for materials management, source reduction, pollution prevention, and cost

savings.

A search of the HPV chemicals included in the 1995 Toxic Release Inventory (TRI) was conducted to

determine what SIDS testing information was publicly available for these chemicals . As shown in Table

4 and Figure 3, 203 HPV chemicals appear on the TRI list . As a result of its review, EPA has learned

that many chemicals may have never been tested to determine how toxic they are to humans or the

environment. (A number of these chemicals are also pesticides, but, this analysis did not consider

information developed under the Federal Fungicide, Insecticide, and Rodenticide Act (FIFRA)) .

While one might expect TRI chemicals to be relatively well tested, in fact, there are numerous testing

gaps . The subset of 203 HPV chemicals in the 1995 TRI list yielded better results than for HPV

chemicals as a whole - the full six-test SIDS battery was available for - 54% of the chemicals and all

of the TRI HPV chemicals had at least some data available . Nonetheless, the TRI chemicals showed

some significant gaps in the basic data set -- about 20% of the TRI HPV chemicals were missing 2 or

more of the basic SIDS tests .

On the other hand, however, is the observation that the majority of HPV chemicals not listed on TRI

lack the basic information needed to determine whether they should be listed on TRI . For example,

- 46% of the non-TRI HPV chemicals have n2 data available and less than 4% have the full set of

basic tests.

The HPV TRI chemicals with higher exposure potential were also examined and 91 (out of the 203)

HPV TRI chemicals were identified with reported total (on-site and off-site) releases at levels greater

than 1 million pounds (for the 1995 reporting year). Of these 91 high release HPV TRI chemicals, 74%

have information available on all six basic SIDS tests, an additional 20% had five of the SIDS tests

available, and all of the high release HPV TRI chemicals have data available from at least three of the

SIDS tests. See Table 5 and Figure 4 in Appendix III . Nonetheless, given the large releases and

potential for exposure, it is clear that testing beyond the basic SIDS level is necessary to adequately

understand the risks of such high exposure chemicals .

HPV Chemicals and Worker Safety

Test Data Availability of Chemicals with Occuoational Safety and Health Administration (OSHA)

Permissible Exoosure Limits

The Federal Occupational Safety and Health Administration (OSHA) sets Permissible

Exposure Limits (PELs) for hazardous chemicals in the workplace . These PELs are limits, usually

calculated on an eight hour time weighted average basis, on inhalation exposures developed to protect

worker health. As another means of evaluating the US HPV chemicals, EPA obtained an electronic

file of the 738 chemicals currently subject to occupational exposure controls set by OSHA . Based on

information in this file, EPA identified the US HPV chemicals which have OSHA PELs .

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Up to six separate measures of permissible exposure limits were defined in the file . These measures

were: control limit PEL in mg/m3, control limit PEL in ppm, time weighted average PEL in mg/m3, time

weighted average PEL in ppm, short term exposure limit PEL in mg/m3, or short term exposure limit

PEL in ppm . For the purposes of this evaluation, a chemical was considered to have an OSHA PEL

if any of the six limits were defined. Among the 738 chemicals in the file, 288 chemicals were excluded

from the analysis because they did not have defined OSHA PELs . Of the 450 chemicals with OSHA

PELs, 17 chemicals did not have CAS numbers and were also excluded from the analysis . After crossreferencing the remaining 433 OSHA PEL chemicals with the US HPV list, 193 of them were found to

be high production volume chemicals . EPA assessed the extent to which hazard data are publicly

available for these 193 HPV OSHA PEL chemicals as compared with the remainder of the US HPV

chemicals .

The results of human health hazard data availability for OSHA PEL chemicals are summarized in

Table 6 and Figure 5 . EPA found that only 52% of these HPV chemicals with PELs have basic

screening tests for all four of the human health endpoints (acute toxicity, chronic toxicity,

developmental/reproductive toxicity, and mutagenicity). In contrast, of the HPV chemicals without

PALS, only 5% had all four health data types and 49% had p2 data of any type available ; more than

80% have hazard data available on two or fewer SIDS health data components . Thus, it is clear that

the bulk of HPV chemicals without PELs lack even the minimal test data needed to support

development of a PEL value to protect workers .

HPV Chemicals and Widely-Used Consumer Products

Test Data Availability of Chemicals Believed to be Contained in Consumer Products

Of particular interest are the statistics showing the degree to which untested chemicals are used in

everyday consumer products found in the average American home . Another major concern is the

range of uses and the volumes of HPV chemicals present in the materials used in construction of the

homes, schools, churches, offices, factories, shopping malls, and other buildings in which Americans

spend most of their time. The point here is not to identify specific brands or manufacturers; the point

is that many generic product types found in every home contain chemicals that are untested for toxicity.

EPA is developing the source ranking database (S .D.) which among other things identifies the sources

of consumer product chemicals (CPC). There are 1418 chemicals in the S .D., of which 1303 have

unique CAS numbers. Among these 1303 chemicals, 491 are US HPV chemicals . EPA assessed the

extent to which hazard data are publicly available for the 491 US HPV-CPC chemicals found in the

S. D . .

The results of hazard data availability for these consumer product chemicals are summarized in Table

7 and Figure 6. As the figures indicate, relative to other subsets of chemicals, substances used in

consumer products appear to have received a greater level of screening testing than is typical for all

HPV chemicals . However, chemicals used in consumer products warrant a higher level of testing than

that provided by the SIDS set in order to adequately assess potential risks . As with the high release

TRI chemicals, there is high exposure potential to chemicals in consumer products, including exposure

to children. Significantly greater amounts of testing are needed to demonstrate the safety of such

consumer chemicals given the large and varied makeup of the exposed population .

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Do Chemical Manufacturers Ensure that Test Data are Made Publicly Available on the Chemicals

They Make ?

Analyses were also conducted to determine the proportion of hazard data available for US high

production volume (HPV) chemicals for each manufacturer/impo rter of these chemicals. The analysis

focused on the six basic tests previously identified to comp rise a minimally acceptable screening

information data set (SIDS) and, for each HPV chemical, the fraction of the six components of hazard

information for which data were available was computed . For example, a given chemical might have

hazard data available for only acute toxicity and ecotoxicity. This chemical has available information

for two of th e six hazard data components and the proportion of hazard data available for this chemical

is 2/6.

For each company, the average proportion of hazard data available for all of the HPV chemicals

manufactured by that company was computed . For example, suppose that a chemical company

manufactures four chemicals and that the number of hazard data components available for the four

chemicals are 1, 2, 0, and 3 . The average proportion of the six hazard data components available for

the four chemicals manufactured by that company is (1/6 + 2/6 + 0/6 + 3/6)/4 = 1/4. The average

proportion is 1 if all six hazard components are available for each HPV chemical produced/imported

by the company and is 0 if none of the components are available for any of the chemicals

produced/imported by the company .

The results of the analysis are summarized in Figure 7. Average proportions of hazard data available

ranged from 0 to 1 (6/6). For graphical purposes, the average propo rtions were grouped into seven

categories: 0/6; > 0/6 - < 1 .5/6; 1 .5/6 -- < 2.5/6; 2.5/6 -- < 3.5/6; 3.5/6 -< 4.5/6; 4.5/6 -< 6/6, and

6/6. The first category includes only those companies that manufacture/import chemicals that do not

have any hazard data publicly available . The second through sixth categories include companies for

which the average proportion of hazard data available falls within the ranges indicated. These

categories include companies that manufacture just one HPV chemical whose data availability

proportion fell into one of the ranges to companies that manufacture hundreds of chemicals where the

average proportion of hazard data available for chemicals manufactured /imported by the company fell

into a given range. The seventh catego ry includes those companies that manufacture/import

chemicals for which all hazard data are publicly available .

The analysis covered 830 manufacturers/importers of US HPV chemicals. As illustrated in Figure 7,

all of the chemicals manufactured/imported by 148 of the 830 (18%) companies have no SIDS data

available ( i .e., 0/6 SIDS tests are available) . This category is comprised of fewer than 250 chemicals .

An additional 459 companies (55%) sell products for which, on average, half (3/6) or less of the SIDS

tests are publicly available . Finally, for only 21 of the 830 (3%) companies can it be said that all six of

the SIDS tests (6/6) are publicly available for all of their chemicals ( fewer than 40 chemicals comprise

this category).

The Bottom Line -- How Much Will it Cost to Get the Remaining Basic Information?

The Cost of the SIDS ScreeningTests And the Profitability of HPVCs

Any additional testing or screening of chemicals has a price tag . For each chemical, the basic set of

six SIDS screening test endpoints costs about $205,000. Assuming that (1) test data identified in this

study as publicly available meet minimum criteria as to quali ty and usability and (2) where multiple

studies are needed to complete an endpoint ( i .e., mutagenicity, reproductive/ developmental toxicity,

ecotoxicity, and environmental fate), all such studies were in fact available, Table 8 shows the

estimated testing costs to complete remaining SIDS testing for all HPV chemicals . (Test data which

may currently exist in restricted access files but is subsequently made publicly available would serve

to lower these costs.) It would cost the chemical Industry approximately 0.2% of the total annual

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sales of the top 100 US chemical companies to rill all of the basic screening set data gaps for

the high production volume chemicals. This represents less than $427 million of the 1996

industry sales figure of $231 billion (Chemical and Engineering News, May 1997).

EPA believes, however, that for many of these chemicals, the SIDS battery of tests will not provide

sufficient understanding to adequately assess the hazards and risks presented by some chemicals.

Table 8 presents the specific higher tier tests that may be necessary to adequately assess the hazards

of higher exposure chemicals (e .g., chemicals in consumer products, chemicals to which children may

be exposed, high release TRI chemicals, chemicals with large numbers of exposed workers, etc .) and

the costs for those tests. Where high exposure was not a major concern, the results of the SIDS

battery of tests (identified as "Level 1(SIDS)" tier) would be used to determine which of the assays

outlined in the SIDS+ and SIDS++ batteries are a priority such that higher level testing is necessary .

Next steps

EPA plans to use the results of this analysis to establish a baseline of available testing and measure

progress in generating missing needed test data against that baseline . This report will also be of value

to improving company product stewardship efforts, such as CMA's Responsible Care program,

because of the fundamental issues which it poses concerning implementation of effective product

stewardship efforts in the absence of even basic information on chemical hazards and risks .

With this baseline report as a point of departure, EPA is gathering additional information to begin to

engage manufacturers, interest groups, other Federal agencies, and academia in an effort to set

priorities for completing the SIDS tests for the remaining HPV chemicals and to set goals for an

aggressive testing program that will produce the hazard information on these chemicals which is

needed by the public, industry, and others . For example, EPA could establish a challenge program

for the industry to produce this testing by the end of 2003 or 2005 . That would make the cost to

industry between $61-85 million per year - representing approximately 0 .04% of the chemical industry's

annual sales . Considering that there are about 260 million American citizens, using the 2005 end date,

that would amount to less than a quarter per year for each citizen over the seven years of testing .

11
p. 12

References

Auer, C.M., Gould D.H. (1987) Carcinogenicity assessment and the role of structure activity

relationship (SAR) analysis under TSCA Section 5 . Journal of Environmental Science and Health .

C5(1) : 29-71 .

Chemical Manufacturers Association . (1997) "Definition, Content and Availability of Databases

Searched." Appendix A to Draft Report (as yet unpublished), attached to CMA Letter to Environmental

Defense Fund and EPA, September 19, 1997 .

Environmental Defense Fund . (1997) "Toxic Ignorance." Environmental Health Program of

Environmental Defense Fund . Summer 1997

National Research Council (NRC). (1984) : Toxicity Testing : Strategies to Determine Needs and

Priorities . National Academy Press, Washington, DC, 1984 .

OECD. (1990) Decision-Recommendation on the Co-operative Investigation and Risk Reduction of

Existing Chemicals - C(90)163/FINAL

OECD. (1998a) Encyclopedia of Toxicology, Volume 2, pages 460-461 (Publ . Academic Press, 1998,

Ed. Philip Wexler)

OECD . (1998b) OCED press release on HPV chemicals is available on the Internet at

http://www.oecd.org/news_and_events/release/nw-38a.htm.

UNEP. (1996) United Nations Environmental Program : "Screening Information Data Set (SIDS) for

High Production Volume Chemicals", Volumes 1-4, Published by the United Nations, New York, NY

and Geneva, Switzerland, March, 1996

12
p. 13

APPENDIX I.

HPV Hazard Database : Description of Database Format

14
p. 1 4

The U.S. High Production Volume (HPV) chemicals database contains information on whether or not eight hazard

data components are publidy available for 2931 U .S. HPV chemicals . Six of the hazard data components (acute

toxicity, chronic toxicity, developmental and reproductive toxicity, mutagenicity, ecotoxicity, and environmental fate)

comprise the "Screening Information Data Set" (SIDS) test battery established by the Organization for Economic

Cooperation and Development (OECD, 1998a) .

Variable names for each column are shown in the first row. The remaining rows contain the information on hazard

data availability for the chemicals . The first column (CAS) contains a chemical identity number: Chemical Abstract

Services registry number. CAS numbers are uniquely assigned to chemicals . The name of the chemical is

displayed in the second column (CHEMNAME) . An "X" is shown in the third column (ACUTE), if EPA was able to

locate any information on acute toxicity testing. Columns 4 (CHRONIC), 5(DEVEL/REPRO), 6 (MUTAGEN), 7

(ECOTOX), and 8 (FATE) are also marked with an "X" if hazard data were located for chronic toxicity, neurotoxicity,

developmental/reproductive toxicity, mutagenicity, carcinogenicity, ecotoxicity, and environmental fate, respectively.

The total number of eight hazard data test components located for each chemical is shown in Column 9 (TOTAL).

Some 277 of the 2931 U.S. HPV Chemicals are part of the ongoing OECD SIDS international program . Some of

the OECD SIDS test data have not been entered into the databases searched in this study . The database will be

updated to include that information once the hazard data become available . A "C" or "U" is marked in Column 10

(SIDS) if the chemical is part of SIDS testing program . A "C" indicates that testing has been completed, and a "U"

denotes that testing is ongoing . Copies of completed SIDS dossiers are available through the United Nations

Environmental Programme (UNEP, 1996).

The table below displays the information contained in the database for three sample chemicals . The CAS number

and chemical name of the first chemical are 71432 and benzene . As shown below, all six hazard tests have been

conducted for benzene, and the chemical is active under the SIDS program . On the other hand, only three of the

hazard tests (acute toxicity, ecotoxicity, and environmental fate) were located for hexene (CAS no . 25264931), and

none of the six were located for 1-octanesulfonyl fluoride (CAS no . 40630635) .

This database will be available at EPA's Chemical Testing and Information High Production Volume website at

www.epa.gov/opptintr/chemtest/hpv.htm.

, ._..

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p. 105

APPENDIX H.

Where can the Public Find the Information? : Selected Data Sources

16
p. 106

Data Sources Available through the Chemical Information System (CIS)

-- Call 1-800-247-8737 for information on CIS .

1 . Rggis~ of Toxic Effects of Chemical Substances T(RECS)o RTECS is a comprehensive database of

basic toxicity information for over 100,000 chemical substances . It is maintained by NIOSH, and contains quarterly

updates from 1971 to present. In addition to toxic effects and general toxicology reviews, data on skin and/or eye irritation,

mutation, reproductive consequences, and tumorigenicity are provided . Toxic effects are linked to literature citations from

both published and unpublished government reports (including unpublished test data from TSCATS, the EPA TSCA test

submissions database), and published articles from the scientific literature . The database can also be searched online

through the TOXNET system . URL: http://sis.nim.nih.gov

2. Toxic Substances Control Act Test Submissions (TSCATS): TSCATS is a database that indexes

unpublished health and safety studies, chemical test data, and substantial risk data submitted to EPA under TSCA

sections 4, 8(d), 8(e), and For Your Information" ("FYI") . It was developed by Syracuse Research Corporation for EPA's

Office of Toxic Substances, and is a means of conveying the Agency's receipt of unpublished, non-confidential studies

covering test results and adverse effects of chemicals on health and ecological systems submitted under TSCA . TSCATS

catalogs the purpose of testing (observations sought), the test organisms used, the routes of administration, and, where

available, a description of the nature of the chemical tested (e .g., pure, component of a mixture). The title of the

submission is given, as well as file identification data . The database can also be searched online through the NLM

Medlars system. URL: http://sis.nlm.nih.gov

3. Integrated Risk Information System (IRIS) : IRIS, prepared and maintained by EPA, is an electronic

database containing health risk and EPA regulatory information on specific chemicals . IRIS was developed by EPA staff

in response to a growing demand for consistent risk information on chemical substances for use in decision-making and

regulatory activities. IRIS is designed for EPA staff, but is also accessible to state and local environmental health

agencies. The information in IRIS is intended for individuals with extensive training in toxicology, but with some knowledge

of health sciences . The database can also be searched online through the TOXNET system . URL: http://sis.nlm.nih.gov

4. Chemical Carcinoaenesis Research Information System (CCRIS) : CCRIS contains over 7,300 chemical

records and is sponsored by the National Cancer Institute . It contains scientifically evaluated data derived from

carcinogenicity, mutagenicity, tumor promotion, and tumor inhibition studies . The database can also be searched online

through the TOXNET system . URL: http://sis.nim.nih.gov

5. GENETOX: GENETOX is a collection of genetic assay studies developed through the collaborative

efforts of the National Institute of Environmental Health Sciences, the Oak Ridge National Laboratory, and the

Environmental Mutagen Information Center (EMIC) . The database is directed toward the goal of establishing standard

genetic testing and evaluation procedures for the purposes of regulating toxic substances and determining the direction

of research and development in this area. Assays are compared on a chemical-by- chemical basis . Each GENETOX

record corresponds to an individual chemical and may incorporate several studies . Assay results are included on

mutagenicity tables. These tables provide specific information on the type of assay, the biological host, the assay

endpoint, and the final qualitative results of the assay . When available, reference information for the assays is also given .

GENETOX data are derived from the results of assays selected from published primary papers and from reports

submitted to EMIC from contractors . Chemical data included in the database comes from the following sources : EMIC

(Environmental Mutagen Information Center), ETIC (Environmental Teratogen Information Center), SOLM, WATER

POLLUTION, OSHA (Occupational Safety and Health Administration), CHEMLINE, TSCA (Toxic Substances Control

Act) Lists, and RTECS (Registry of Toxic Effects of Chemical Substances) . The database can also be searched online

through the TOXNET system . URL: http://sis.nim.nih.gov

6. Aquatic Information Retrieval Database QUIRE): AQUIRE is produced by the EPA Environmental

Research Laboratory in Duluth, Minnesota . AQUIRE data are extracted from literature published worldwide and from

independently compiled data files . Documents to be abstracted are identified through online literature searches, from

17
p. 107

review article and criteria document bibliographies, and from existing aquatic toxicity reprint collections . AQU IRE includes

data on acute and chronic toxicity, bioaccumulation, and sublethal effects generated from tests performed on freshwater

and saltwater species . Data on aquatic mammals, birds, and bacteria are not included in AQUIRE. The data are

formatted into records at the level of the individual tests or observations . Each record contains chemical substance

information, test organism details, study protocol, experimental details, and results for one test or one observation within

a given reference document. Thus, there can be multiple AQUIRE records for a given chemical from a single paper as

well as from several different papers.

7. Phvtotox: Phytotox is a database dealing with the effects of organic chemicals on terrestrial vascular

plants. The database has been compiled in the Department of Botany and Microbiology at the University of Oklahoma

under sponsorship of the U .S. Environmental Protection Agency . All information in the database has been extracted from

open literature. Each record in the database contains information about the effects of the application of one concentration

of a single chemical on a particular plant species as reported in one paper . Papers selected for inclusion in Phytotox

must satisfy three principal criteria : (1) a terrestrial plant was studied ; (2) organic chemicals were applied ; and (3) direct

effects were evaluated. Data are then extracted from these papers for inclusion in the Phytotox database . Each record

in the database defines the chemical and plant species involved in the test, provides dosage and application information,

lists all noted effects of the test on the plant, and provides a bibliographic citation for the source of the data .

8. Envirofate : Envirofate, developed through the collaborative efforts of EPA's Office of Toxic Substances

and the Syracuse Research Corporation, contains data on approximately 800 chemicals . Envirofate contains summary

information concerning the environmental fate and the physical-chemical properties of chemicals released into the

environment. Chemicals selected for inclusion in the database are produced annually in excess of one million pounds .

Envirofate contains twenty-four types of data extracted from papers published worldwide dealing with environmental fate

and behavior studies .

Data Sources Available through TOXNET. a Division of the National Library of Medicine (NLM1

-- Call 1-800-638-8480 for information on TOXNET.

9. Environmental Mutagen Information Center (EMIC) : EMIC is a bibliographic database on biological and

physical agents and chemicals that have been tested for genotoxic activity. EMIC covers publications from 1991 to

present; earlier years are covered in EMICBACK. The files are maintained by federal funding . The database can also

be searched online through the TOXNET system . URL: http://sis.nim.nih.gov

10. Environmental Teratology Information Center (ETIC). also known as Develoomental and Rel2roductive

Toxicology Database (DART) : ETIC is a bibliographic database containing citations to publications concerning

developmental and reproductive toxicology . It covers 1989 to present; earlier years are covered in ETICBACK. The files

are maintained by federal funding . The database can also be searched online through the TOXNET system . URL:

http://sis.nim.nih.gov

Libra Reference Boo k

11 . Shepard's Catalog of Teratogenic Agents (CTA1 : The CTA (81h edition) is a reference book published

in 1995 by The Johns Hopkins University Press containing teratogenic information on more than 2500 chemicals . The

book was authored by Thomas Shepard, and it provides a comprehensive compilation of animal and human research

on the teratogenicity of chemical and environmental agents . The CTA includes many references for the Japanese as

well as the American and European literature .

18
p. 108

APPENDIX III.

Tables and Figures

19
p. 109

ft"t .buxl lm Arailmliryl rf 6c6 AIS (Opou W for O.S. 110

Iroddoa Volume (NPh ONWs

100

90

80

70

60

C

iiChronic 6wi r.ratog.nb8yr

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Fate Data Data

Toxicity

m Yaa 49.4 13.9 22.8 33.8 30.4 30 .6 8 .5 7.1

pNo 50 .6 86.1 77.2 88.2 88.8 69 .4 91 .5 92.9

Aft TIItIkSIlSletaOeMQdiRiattteoddlJ,d►Ilift~dr~,l~dpAelbUrqnirthemtltltl,~1,~1,7MeIrle~undl(aa Gf~taltltp,~ry,

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p. 110

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p. 111

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Chemicals Chemicals

(n= 203) 25.1 (n= 2660)

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p. 112

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p. 113

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(n=193)

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p. 114

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(n=491) (n=2372)

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p. 115

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p. 116

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Mutagenidry' 96q (33.896) i894

Etotezidry' 86qW96) i994

fariroameoulhtc' &g qo .696) 106

AS Health Dap3 Zqz(&s%) 2621

AD SIDS Data; toz (I

-i966 zbbt

' pn ~ae abYnd ~raptk t~l lrib nlnw a tk eiyiMt rae Moak a~M~c ~~~ tr da~ e*Yd iqia Ntl~k dNn.

' 1Nf NaMA pn Y~Mk m u1dr~, drMC a#~. bdMAaNV~q~M~ ~qd1, al arYdidry.

~ w fas an rare ~s ~n aa a~a4, ar a~a.a~ pa.

kalM~ BIY~wY~~~uIIlNaarotltN~eNlAl~aa
p. 117

Tibk tNuu/ lm AMlNky Ur U .S. luo hdoaia

Yoiaat (flPY) (ftiai s

Ttas PaferoN` i o aft of 9PY (bcmia6

0 in6 (4zS%)

1 395 (B.8%)

2 296(10.3%)

3 ibb (9.3%)

4 z51(9.o%)

S 231 (M)

6 202 (7.1%)

TOTAL i863

SNSaaunYduk~mnmddt►,~a+~►.~u~t,~1.~1.~rarYw~uli~te. hrkrd~er~NqnMiaiKMdtl,~eYtl~l,calwtlry' .~ra~kiwa~dtxeaamweeauYnd~nwkr~aoAnrd~r+~tnth~Yat

~ae Iqtd, n~ tk SqS ftt Fr dae eilNMd "Mat*a ok c

anso.~ fM ►w~o~ .~9.1 Nwa~lokkw~o~llu~a~a
p. 118

Table 3. Comparisons of Availability of Hazard Data for High Production Volume (HPV)

Chemicals to Other Studies

:EDF 100 CMmkalr

4~ Cha»Icsl Hazard Data

Tast Type ` : $tudyc" Tozk lynoran+cs '~ i~ tlraff Raport" . ~lvalk blHty Study'

Acute Toxicity 20% >90% 99% 49%

RepeatedDose Toxicity' 10% >75% 95% 14%

(Subch ronic / Chronic) (10%/4%) (>75% / >40%) (Not Available 114%)

Developmental Toxicity >55% 71%

8

Reproductive Toxicity 6% 47% 58 9(, 23%

Genetic Toxici ty (jn yjW 93%

Genetic Toxicity (In yjyQ) 9% >75% 71% 34o,6e

Meets SIDS Requirements

Human Health'

for 29% 47% 9%

'Based on results of study conducted by National Academy of Sciences National Research Council In 1984 ( NRCJNAS . 1984; pp.45-50) on 259 HPV chemicals randomly

selected from the TSCA existing chemical inventory list (at that time, 48,523 chemicals), which underwent a standardized sc reening procedure to identify publicly available toxicity

information (i .e., additional test data may exist in restricted acoess files) .

'Chemicals with at least one test in each SIDS health category were oonsidered to meet SIDS require ment for that ceEegory. The six SIDS health categories a re acute toxicity,

repeated dose toxicity, developmental toxicity, reproductive toxicity, genetic toxicity Qp yW, and genetic toxicity QQ yW .

'CMA, 1997 .

`Based on EPA Information on 2863 U.S. HPV Chemicals from 1990 IUR Update.

'Test components in repeated dose toxicity testi ng element include subch ronic toxicity testing and chronic toxicity testing.

'For developmental/reproductive toxicity and mutagenicity , test data were considered available if any studies re levant to the endpoint we re located ; completing the SIDS set for

these endpoints requires multiple studies.

'For EPA's Chemical Hazard Data Availabili ty study, SIDS human health testi ng Includes acute toxicity, chronic toxicity, developmental/reproductive toxicity, and mutagenicity. For

EDF and CMA analysis, SIDS human health data were available In each ofthe six toxicity endpoints listed above .
p. 119

Ta bk 4. Iluud Data ArnUibitlq for O.S. No MdactW

velawc (NPV) TAI (Wfals

No L'

q

-t~K- 4 lfl 141M11 #

TtuS ~f d'~f~" `_ , ~tf bl

0 0(0-0%) 1216 (61%)

1 z (1.0%) 393 (148%)

2 (i.S%) 291 (1o196)

3 (14%) 29 (9•4%)

4 z1(10.3%)

5 ~ 41%) 180 (6.8%)

6 loq (g.T%) 93 (3d%)

TOTAL 103 z66o

wtuaeua~ar~xreu~.anrcw~r,~w~r,~dn.~r,~~r~. ►»~~r.•~+an.aua~aa,~a~r.n~wrx~mcba~a~na~r~rarkcrem~n,~ ~

Nee Ncxd; aipktlK tlk fYS ~t ~r u~ne e~~Yn rc~im M~k ~aHn

ero1~a v~~d~n~~3u~~Yabraerr~~oN~¢Mm
p. 120

Table S. Tlu : Hazard oaq Arnilibiliq for O .S. Nish Produdo

YoW (NPY) TRI (hapiais : Toni Oasite and OfBite

Ikkaus ir faess of t MiIIioA Pouads '

Maa btr 4 Sm TN (bald 16 T" woo ad : Ttst3 P~t71tf ~ ;~ ~4 Od~tc AdoStS~j

0 0(0-0%)

~ 0(0-0%)

2 00.0%)

3 1 (i. 1%)

4 4 (44%)

S 18 (tq.8%)

6 68 (141%)

TOTA L

'iIdl anilt a dMftlotrdeaf tOud taltt dmn adtnWbNppl.

`ipfkrtf~Intlokx~cnoddq.drMkutldtr.l~d~na~hqM~e~~dtP.~l~1.~A~luii~Wf+tt. hrdMd~hqnMphenddtp ~ertNatd .~t~ddtP,c~tP,y~leNireMetAf~t,teaqhretadkrdmWkYalmNardm~tuthalpYt ;a~ktlKtlrflqkt~rdrftaipharq~ra~Ntl~k paAtt.

Im IIfR EM H~rwtW M 21aj U~ IMY(hEBldl hlnq~011M Iqlxe
p. 121

Tibk 6 . ON: Nord Data A►ailablliry for U .S. Kip Produtk

Volume (8PY) OSHA PEL (hemin h

:qr~ba_ofADi ltahp >s = OSl1A Pfl fbaninl

= Tctd ~a~nrM' ' '16

0 1 (o.s%) B03 (48.8%)

1 q (0) 4b (41%)

2 29 hs.o96) 386044%)

3 53474%) 314 (n.896)

4 101 (¢.3%) 1410)

TOTAL 1 93 267o

I spKholnaamnYdrexMemiary,enrcmddq *dW a **NWk u",irM%e". ferlnd~naW/rpnwnhetatlry~l~t~eldt►,caranMeea~Yed~aN~lkr~aelktrekwxntlknpi~t~ereYdcknn~ktlKthSNll~tkrmaernqaUu r*1MM**ftk

Wdllare : D~ 16 Ub Mtt63U1INYUMbhAan99eIUIw
p. 122

Tibic 1 . (K: Nuud qm ArnMGtp for O.S. Niih Indoai M

Yoiamc ( NPY) (ooumer Prodoa (heminls

-- , ,.

tiimra hoha (DcmiaF

l~mbcr of.ABS

Tcu~ ~afar~cC ~ ~

0 32 (6'~%)

1 36(7.3%) 359 (v,' %)

z SA (n.4%) 20(10.1%)

3 66(13.4%) zoo (8.4%)

4 88 (r1.9%) ibq (1.1 %)

s qz ( 8 '1%) 13q M %)

6 tti (46%) 810.4%)

TOTAL

49 237z

W

9Ktarqardwexaras+lar

rt Mo * W1 *tk 1N! sG f

.drMCaddry.Irldbpn IMwMqMmddq, mv4eidt►.coppdtr,sresriwMedtw- hrksd* eN+l/rq►Ms~hepoddq, Wt Nekltb mWxkr.yraNN Nsulpa.axpnMeearolled MNdkrNY smaa *WnthteW* r ewe a*Yn "ftsw*sdlks.

`k Naoeta! Y EM's ~ f~ Ih~p~ I~aku.

IiaAarc: flslYf~rs>pH~~s~G11MYUseYOkf~st~9oNll~pa .
p. 123

Table 8. Estimated Costs for SIDS, SIDS+ and SIDS++ Testing Tiers

(Based on High Production Volume/Exposure)

Level I (SIDS Battery)

Physical Chamkal Propa ►~ ~~ > ~

102 Melting Point CMA :600 $600

103 Boiling Point CMA :650 $600

104 Vapor Pressure CMA =1,550 $1,550

107 n-Octanol/Water Partition Coefficient (Shake Flask) CMA $3,750 $3,750

105 Water Solubility CMA $3,200 $3,200

EnvironmonW Fate and Pathways'-

Photodegradation (Via Simple Estimation) CMA :2,600 $2,600

- Hydrolysis - Stability in Water (Via Estimation) CMA $3,100 $3,100

Transport/Distribution (Fugacity Model) CMA $750 :750

302 Inherent Biodegradation CMA :13,050 $13,050

Ecohaxlclty ,

203 Acute Toxicity to Fish CMA $8,000 $8,000

202(1) Acute Toxicity to Daphnia CMA $6,100 $6,100

201 Toxicity to Aquatic Plants (Algae) CMA $7,250 $7,250

Mammalian ro"xich,

403 Acute Inhalation Toxicity OR CMA $15,900 $8,000

401 Acute Oral Toxicity OR CMA $4,500 (Avg of 403, 401, 402)

402 Acute Dermal Toxicity (870.1200) [EPA] [; 3,700]

Mammalian Toxicity - Genotoxicity

471 Genetic Toxicity (Ames-Salmonella typhimurium) CMA $5,150 $5,150

473 Chromosomal Aberration (in vitro) OR CMA ;19,500 :18,750

(Avg of 473 and 474)

474 Chromosomal Aberration (in vivo - micronucleus test) CMA $18,000

Mammalian Toxicity - Repeated DosolRaprolDevol

422 Combined Repeated Dose w/ Repro/Devel Tox Screen CMA $122,000 $122,80 0

OR (Avg of 422 & (407+415))

407 Repeated Dose Oral Toxicity & CMA ; 60,000

415/421 Reproductive Toxicity (1-generation) CMA $63,600

Total

$ M250
p. 124

Level II (SIDS +)

SIDS Battery (Level Q AND CMA ; 205,000 [approxt miata flyure] $ n5i0q0

Shake Flask Die-Away Test ( 835.3170) [EPA] $33,500 $33,500

Fish Biocentration Study ( 850.1730) [EPA] $47,200 [flow-thru] $47,200

Fish Early Life Stage [static or flow-th rough] (850.1400) [EPA] $40,000 [avg all species] $40,000

Daphnia Chronic Toxicity (850.1300) [EPA] $28,200 [avg of staticlflow-thru] $28,200

Avian Dieta ry Study in Bowhites or Mallards (797.2050) [EPA] $10,000 [avg both species] $10,000

Pharmacokinetics/ADME [Tier 1] (870.7485) [EPA] :27,000 :27,000

Acute Neurotoxicity ( 798.6050-6200-6400) [EPA] $65,000 [avg all routes - rat] $65,000

Mouse Lymphoma Assay (798.5300) [EPA] $15,000 $15,000

Dominant Lethal Assay [rodents] (798.5450) [EPA] $75,000 [avg all] $75,000

Subchronic Toxicity (798.2250, 2450, 2650) [EPA] ;125,000 [avg all routes - rat] ;125,000

wl Immunotoxicity Satellite (SRBC - PFC or ELISA) [EPA] [TBD] [TBD]

Subchronic Neu rotoxicity (79&60517-6200-6400) [EPA] $200,000 [avg all routes - rat] :200,000

Developmental Tox (2 species) ( 798.4900) ($70,000 X 2) [EPA] $140,000 [avg all] : 140,000

2-Generation Reproduction Study (870.3800) [EPA] : 450,000 [avg all routes - rat] $450,000

Total - i 1,500,000

Level III (SIDS++)

-

SIDS Battery +(Lavels I and II) AND $1,500,000 ;1^pp0 :.. :

Sediment/Water Microcosm Biodegradation [EPA] $81,400 [avg of staticlflow-thru] $81,400

Fish Full Life Cyle Test ( 850.1500) [EPA] $250,000 [RAD/OPPT Est. - oral comm.] :250,000

Avian Reproduction Test in Mallards (797.2150) [EPA] :66,400 [dietary route] $66,400

Pharmacokinetics (Mechanistic) [EPA] [TBD] [variable cost] (TBD]

Mouse Specific Locus Assay ( 798.519515200) [EPA] $750,000 [avg visible/biochemical] $750,000

Heritable Translocation Assay (798.5460) [EPA] :60,000 [avg all routes - mice] $60,000

Developmental Neurotoxicity ( 870.6300) [EPA] : 150,000 [avg all routes -rat ] $150,000

Chronic/Onco [2-species (rats and mice)] (870.4200) [EPA] $1,352,000 [avg all routes] : 1,352,000

Total $ 4,200,000

" CMA estimated testing costs taken from a table enclosed with a letter dated June 3,1997, from D . HeIin/CMA addressed to C.

Auer/CCD/OPPTIEPA with regard to a CMA proposal for an OECD/SIDS "scoring" system.

SIDS+ estimate of - : 1,500,000 does not include costs for immunotoxicity satellite in the subchronic toxicity stud y

SIDS++ estimate of -: 4,200,000 does not include pharmacokinetics testing which is both chemical case specific and variable in cost

NOTE: Positive effect(s) obse rved in lower tier test(s) would shift the chemical to higher testing tier(s) as needed .

All EPA source cost estimates are from Economic and Policy Analysis BranchlEETD/OPPT (11/03197 Data Cost Table and a 1998

(specific date unknown) Data Cost Table) unless otherwise specified in "Considerations"