## Appendix A. Ecological Effects Data

Comparison of Toxicity of Organisms to different forms of Triclopyr in terms of the acid equivalent (TEA

, BEE, & degradate TCP )

Taxa Effect Type Endpoint Triclopyr Acid

- TGAI TEA

(ae ) BEE

( ae ) TCP

(ae)

Freshwater fis h

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 117 mg/L 79.2 mg/L 0.47 mg/L 1.9 mg/L

Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 148 mg/L 155.4 mg/L 0.26 mg/L 16.1 mg/L

Freshwater fish

Fathead Minnow

( Pimephales promelas ) Chronic NOEC

LOEC No Data > 32.2 mg/L

< 50.2 mg/L No Data No Data

Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Chronic NOEC

LOEC No Data No Data 0.019 mg/L

0.034 mg/L No Data

Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 132.9 mg/L 346 mg/L 0.25 mg/L 13.4 mg/L

Freshwater invertebrate

Water flea

( Daphnia magna ) Chronic NOEC

LOEC No Data 25 mg/L

46.2mg/L No Data No Data

Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute 14d EC50 No Data 6.1 mg/L 0.86 mg/L Invalid stud y

Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum capricortum ) Acute 5d EC50 29.8 mg/L 12.1 mg/L 2.5 mg/L 2.3 mg/L

Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 5d EC50 No Data (7d EC50)

4.1 mg/L 1.42 mg/L 2. 3 mg/L

Non

- vascular aquatic plant

Freshwater diatom

( Navicula pelliculosa ) Acute 5d EC50 No Data (4d EC50)

10.6 mg/L 0.07 mg/L

No Data

Avian

Mallard duck

( Anas platyrhynchos ) Acute oral LD50 1698 mg/kg bw (14d LC50)

1418 mg/kg bw N o Data No DataTaxa Effect Type Endpoint Triclopyr Acid TEA (ae ) BEE

( ae ) TCP

(ae)

Avian

Northern bobwhite Quail

( Colinus virginianus ) Acute oral 21d LD50 No Data No Data 529 mg/kg bw (8d LD50)

> 2585 mg/kg bw

Avian

Northern bobwhite Quail

( Colinus vir ginianus ) Subacute

dietary 8d LC50 2934 ppm 5,189 ppm 3385 ppm No Data

Avian

Mallard duck

( Anas platyrhynchos ) Subacute

dietary 8d LC50 No Data > 4,464.8 ppm > 3885 > 7265 ppm

Avian

Mallard duck

( Anas platyrhynchos ) Chronic NOAEC

LOAEC 100 ppm

200 ppm

# of 14 d old survivors No Data No Data No Data

Rodent

Rat Acute oral LD50 630 (F) mg/kg 572 (M & F)

mg/kg 578 (M & F) mg/kg 1026 (M)

mg/kg

Rodent

Rat Chronic NOAEL

LOAEL 5 mg/kg bw

25 mg/kg bw No Data No Data No Data

Honeybee

( Apis mellifera ) Acute Contact

48h LD50 >100 μg/bee No Data > 72 μg/bee No Data

Terrestrial dicot

Sunflower ( Helianthus annus )

(Vegetative Vigor) Acute 14d EC25 No Data 0.005 lbs ae/A

Parameter: shoot

length 0.006 lbs ae/ A

Parameter: shoot

weight No Data

Terrestrial monocot

Onion ( Allium ce pa )

(Vegetative Vigor) Acute 14d EC25 No Data 0.114 lbs ae/A

Parameter: shoot

weight 0.063 lbs ae /A

Parameter: shoot

weight No Data

Terrestrial dicot

Alfalfa ( Medicago sativa )

(Seedling Emergence) Acute 51d EC25 No Data No Data 0.045 lbs ae /A

parameter: emergence No Data

Terrestrial dicot

Soybean ( Glycine max )

(Seedling Emergence) Acute 14d EC25 No Data > 0.23 lbs ae/A

Parameter: shoot

length < 8.0 lbs ae/A

Parameter: emergence No Data

Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acut e 51d EC25 No Data > 0.69 lbs as/A

Parameter: shoot

length 0.053 lbs ae /A

Parameter: shoot

weight No DataTerrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 14d EC25 No Data > 0.23 lbs ae/A

Parameter: shoot

length < 8.0 lbs ae/A

Para meter: emergence No Data

### Triclopyr Acid (colored cells are most sensitive for triclopyr acid)

Habitat Taxa Effect

Type Endpoint Value Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author) )

Aquatic Freshwater fish

Rainbow Trout

( O ncorhynchus mykiss ) Acute 96h LC50 117 mg/L Practically

Non

- Toxic Acceptable 00049637

Dow Chemical

1973

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 148 mg/L Practically

Non

- Toxic Acceptable 00049637

Dow Chemical

1973

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 132.9 mg/L Practically

Non

- Toxic Acceptable 40346504

McCarty 1977

Aquatic

plants Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum

capricortu m ) Acute 5d EC50 29.8 mg/L Parameter? Supplemental 41736303

Cowgill 1989

Terrestrial Avian

Mallard duck

( Anas platyrhynchos ) Acute

oral LD50 1698 mg/kg bw Slightly Toxic Acceptable 40346401

Dow Chemical

1976

Terrestrial Avian

Cortunix Quail Subacu te

dietary LC50 3272 ppm Slightly Toxic Supplemental 00049638

Dow Chemical

1973

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Subacute

dietary LC50 2934 ppm Slightly Toxic Acceptable 40346403

Dow Chemical

1976

Terrestrial Avian

Malla rd duck

( Anas platyrhynchos ) Subacute

dietary LC50 5620 ppm Practically

Non

- Toxic Acceptable 0031249

Wildlife Int’l 1979

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Chronic N OAEC

LOAEC

LOAEC 500

>500

200 ppm

ppm

ppm N/A Acceptable 00031251

Beavers 1979

Terrestrial Avian

Mallard duck

( Anas platyrhynchos ) Chronic NOAEC

LOAEC 100

200 ppm # of 14 d old

survivors Acceptable 0003125 0

Beavers 1979Habitat Taxa Effect

Type Endpoint Value Unit Toxicity

category Study

Classification Sour ce

(MRID or Acc#

, author)

Terrestrial Rodent

Rat Acute

oral LD50 729 (M)

630 (F)

(F 95% CI 450

- 829) mg/kg

mg/kg

mg/kg Slightly Toxic Acceptable

(HED 2002) 00031940

Henck et al. 1979

Terrestrial Rodent Chronic NOAEL

LOAEL 25

250 mg/kg bw

mg/kg bw Reproductive/

Systemic Acceptable

( RED 1998 ) 43545701

Vedula et al. 1995

Terrestrial Rodent Chronic NOAEL

LOAEL 5

25 mg/kg bw

mg/kg bw Reproductive/

Offspring Acceptable

(HED 2002) 43545701

Vedula et al. 1995

Terrestrial Honeybee

( Apis mellifera ) A cute Contact

48h LD50 > 100 μg/bee Practically

Non

- Toxic Acceptable 40356602

Dingledine 1985

### TCP (Degradate Toxicity Information)

Habitat Taxa Effect

Type Endpoint Value

(expressed as

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 16.1 mg/L Slightly

Toxic Acceptable 41829003

Gorzinski et al.

1991

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 16.3 m g/L Slightly

Toxic Acceptable 4182900 4

Gorzinski et al.

1991

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 1.9 mg/L Moderately

Toxic Acceptable 44585404

Wan et al

. 1987

Aquatic Freshwater fish

Coho salmon Acute 96h LC5 0 2.3 mg/L Moderately

Toxic Supplemental 44585404

Wan et al

. 1987

Aquatic Freshwater fish

Chum salmon Acute 96h LC50 2.3 mg/L Moderately

Toxic Supplemental 44585404

Wan et al

. 1987

Aquatic Freshwater fish

Sockeye salmon Acute 96h LC50 3.2 mg/L Mod erately

Toxic Supplemental 44585404

Wan et al

. 1987

Aquatic Freshwater fish

Chinook salmon Acute 96h LC50 2.7 mg/L Moder ately

Toxic Supplemental 44585404

Wan et al

. 1987

Aquatic Freshwater fish

Pink salmon Acute 96h LC50 3.5 mg/L Moderately

Toxic Su pplemental 44585404

Wan et al

. 1987

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 13.4 mg/L Slightly

Toxic Acceptable 41829003

Gorzinski et al

. 1991

Aquatic

plants Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute

---- ---- ---- Limited

critical

endpoints

measured Invalid 45312002

Kirk et al. 2000

Aquatic

plants Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum

capricortum ) Acute 4d EC50 2.3 mg/L Paramete r:

Growth

( Yield) Supple mental 45312001

Kirk et al. 1999Habitat Taxa Effect

Type Endpoint Value

(expressed as

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic

plants Non

- vascular aquatic plant

Green algae

( Kirchneria subcapi tata )

(Formerly Selenastrum

capricortum ) Acute 4d NOAEC

(as EC05) 0.84 mg/L Paramete r:

Growth

(Yield) Supplemental 45312001

Kirk et al. 1999

Aquatic

plants Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 5d EC50 2.3 mg/L Pa ramete r:

Growth and

Reproduction

( Yield ) Supplemental 45312003

Kirk et al. 2000

Aquatic

plants Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 5d NOAEC 0.46 mg/L Paramete r:

Growth and

Reproduction

(Yield) Supplemental 45312003

Kirk et al. 2000

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Acute

oral 8d LD50 > 2585 mg/kg bw Practically

Non

- Toxic Acceptable 41829001

Campbell et al.

1990

Terrestrial Avian

Mallard duck

( Anas platyrhynchos ) Subacute

dietary 8d LC5 0 > 7265 ppm Practically

Non

- Toxic Supplemental 41829002

Long et al. 1990

Terrestrial Rodent

Rat Acute

oral LD50 1026 (M)

1124 (F) mg/kg Slightly Toxic Acceptable 00064938

Gerbig & Emerson

1970

### Triclopyr Triethylamine ( TEA ) (colored cells are most sen sitive for TEA )

Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 273.7

(flo w

- through) mg/L Practically

Non

- Toxic Acceptable 00151956

McCarty 1978

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 233.1 mg/L Practically

Non

- Toxic Acceptable 00151956

McCarty 1978

Aquatic Freshwater fish

Rainbow Trou t

( Oncorhynchus mykiss ) Acute 96h LC50 79.2

(flow

- through) mg/L Practically

Non

- Toxic Acceptable

(for formulated

product) 00049637

Dow Chemical

1973

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 398.7

(flow

- through) mg/L Practically

Non

- Toxic Acceptable 00151956

McCarty 1978

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 155.4

(flow

- through) mg/L Practically

Non

- Toxic Acceptable

(for formulated

product) 00049637

Dow Chemical

1973

A quatic Freshwater fish

Fathead Minnow

( Pimephales promelas ) Acute 96h LC50 422.8

(flow

- through) mg/L Practically

Non

- Toxic Acceptable 00151956

McCarty 1978

Aquatic Freshwater fish

Fathead Minnow

( Pimephales promelas ) Acute 96h LC50 168.5

(static) m g/L Practically

Non

- Toxic Acceptable 00151958

Mayes 1983

Aquatic Freshwater fish

Fathead Minnow

( Pimephales promelas ) Acute 96h LC50 86.4

(flow

- through) mg/L Practically

Non

- Toxic Acceptable 00151958

Mayes 1983

Aquatic Marine/Estuarine fish

Inlan d silverside

( Menidia beryllina ) Acute LC50 40.1 mg/L Practically

Non

- Toxic Acceptable

(for formulated

product) 41633703

Ward 1989

Aquatic Freshwater fish

Fathead Minnow

( Pimephales promelas ) Chronic NOEC

LOEC > 32.2

< 50.2 mg/L

mg/L Parameter:

Lengt h Acceptable 00151958

Mayes 1983

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 463.5 mg/L Practically

Non

- Toxic Acceptable 00151959

Gerisch 1982Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Un it Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 346 mg/L Practically

Non

- Toxic Acceptable 00151956

McCarty 1978

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Chronic NOEC

LOEC 25

46.2 mg/L total young

and mean

brood size Acceptable 00151959

Gerisch 1982

Aquatic Mollusca

Eastern oyster

( Crassostrea virginica )

(shell deposition) Acute LC50/EC50 18.4 mg/L Slightly Toxic Acceptable

(for f ormulated

product) 42646101

Kowalski 1992

Aquatic Mollusca

Eastern oyster

( Crassostrea virginica )

(embryo larvae) Acute 48h EC50 > 16.9

< 26.3 mg/L

mg/L Parameter:

100%

abnormal

development

at 87 ppm Acceptable

(for formulated

product) 00062623

EG & G 1975

40346606?

Aquatic Crustacea

Pink shrimp

( Penaeus duorarum ) Acute LC50/EC50 270.5 mg/L Practically

Non

- Toxic Supplemental 00062623

EG & G 1975

40346606?

Aquatic Crustacea

Grass Shrimp

( Palaemontes pugio ) Acute LC50/EC50 103.7 mg/L Practically

No n

- Toxic Acceptable

(for formulated

product) 42646102

Kowalski 1992

Aquatic Crustacea

Fiddler crab

( Uca pugilator ) Acute LC50/EC50 > 302.2 mg/L Practically

Non

- Toxic Supplemental 00062623

EG & G 1975

40346606?

Aquatic

plants Vascular aquatic plant

Duck weed

( Lemna gibba ) Acute 14d EC50 6.06 mg/L Parameter :

Growth and

Reproduction Acceptable 41633709

Cowgill 1987

Aquatic

plants Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute 14d EC50 7.6 mg/L Paramete r:

Growth and

Reproduction Acceptable 417363 02

Cowgill 1988

Aquatic

plants Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum

capricortum ) Acute 5d EC50 12.1 mg/L Parameter :

Growth Acceptable 41736305

Cowgill 1987Habitat Taxa Effect

Type Endpoint Value

(exp ressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic

plants Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 7d EC50 4.1 mg/L Parameter :

Growth Acceptable 41633706

Cow gill 1987

Aquatic

plants Non

- vascular aquatic plant

Freshwater diatom

( Navicula pelliculosa ) Acute 4d EC50 10.6 mg/L Parameter :

Growth Acceptable 41633708

Cowgill 1987

Aquatic

plants Non

- vascular aquatic plant

Marine diatom

( Skeletonema costatum ) Ac ute 5d EC50 4.6 mg/L Parameter :

Growth Acceptable 41633707

Cowgill 1987

Terrestrial Avian

Mallard duck

( Anas platyrhynchos ) Acute

oral 14d LD50 1418 mg/kg bw Practically

Non

- Toxic Acceptable 40346501

Fink 1978

Terrestrial Avian

Mallard duck

( Anas pl atyrhynchos ) Acute

oral 8d LD50 1417.6 mg/kg bw Practically

Non

- Toxic Acceptable 00134178

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Subacute

dietary 8d LC50 5,189 ppm Practically

Non

- Toxic Acceptable 40346503

Fink 1978

Terrestrial Avian

Mallard duck

( Anas platyrhynchos ) Subacute

dietary 8d LC50 > 4,464.8 ppm Practically

Non

- Toxic Acceptable 40346502

Fink 1977

Terrestrial Rodent

Rat Acute

oral LD50 572 (M & F) mg/kg Slightly Toxic Acceptable 41443301

Mizell & Lomax

1988

Terrest rial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) Acute 14d EC25 0.0063 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) A cute NOAE C 0.0028 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Terrestrial

Plant Te rrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) Acute 14d EC25 0.005 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) Acute NOAE C 0.002 8 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129801

Terrestrial

Plant Terre strial dicot

Sunflower

( Helianthus annus )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae /A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Sugarbeet ( Beta vulgaris )

(Vegetative Vigor) Acute 14d E C25 0.030 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Sugarbeet ( Beta vulgaris )

(Vegetative Vigor) Acute 14d EC25 0.11 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Sugarbeet ( Beta vulgaris )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129801

Terrestrial

Plant Terrestrial dicot

Sugarbeet ( Beta vulgaris )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Tomato

( Lycopersicon esculentum )

(Vegetative Vigor) Acute 14d EC25 0.0135 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terre strial

Plant Terrestrial dicot

Tomato

( Lycopersicon esculentum )

(Vegetative Vigor) Acute 14d EC25 0.018 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Tox icity

category Study

Classification Source

(MRID or Acc#

, author)

Terrestrial

Plant Terrestrial dicot

Tomato

( Lycopersicon esculentum )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestr ial

Plant Terrestrial dicot

Tomato

( Lycopersicon esculentum )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

Wheat ( Triticum aestivum )

(Vegetativ e Vigor) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Wheat ( Triticum aestivum )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129 801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Wheat ( Triticum aestivum )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Oilseed rape

( Brass ica napus )

(Vegetative Vigor) Acute 14d EC25 0.051 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Oilseed rape

( Brassica napus )

(Vegetative Vigor) Acute 14d EC25 0.064 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Oilseed rape

( Brassica napus )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Oilseed rape

( Brassica napus )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Radish ( Raphanus sativus )

(Vegetative Vigor) Acute 14d EC25 0.125 lbs ae/A Par ameter:

shoot weight Acceptable 43129801

Schwab 1993Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Terrestrial

Plant Terrestrial dicot

Radish ( Rapha nus sativus )

(Vegetative Vigor) Acute 14d EC25 0.132 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Radish ( Raphanus sativus )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot lengt h Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Radish ( Raphanus sativus )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

C orn ( Zea mays )

(Vegetative Vigor) Acute 14d EC25 0.121 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Corn ( Zea mays )

(Vegetative Vigor) Acute 14d EC25 0.32 lbs ae/A Parameter:

shoot length Acceptab le 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Corn ( Zea mays )

(Seedling Emergence) Acute 14d EC25 > 0.23 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Corn ( Zea mays )

(Seedling Em ergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 14d EC25 > 0.23 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulga re )

(Seedling Emergence) Acute NOAE C 0.230 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Accepta ble 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990Habitat Taxa Effect

Type Endpoint Value

(expres sed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Vegetative Vigor) Acute 14d EC25 0.114 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Vegetative Vigor) Acute 14d EC25 0.24 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute 14d EC25 > 0.69 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockd ale 1990

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Vegetative Vigor) Acute 14d EC25 0.005 7 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Vegetative Vigor) Ac ute NOAE C 0.0003 lbs ae/A Parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Vegetative Vigor) Acute 14d EC25 0.028 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestr ial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Seedling Emergence) Acute 14d EC25 > 0.23 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Seedling Emergence) Acute NOAE C 0.00 28 lbs ae/A Parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Seedling Emergence) Acute 21d EC25 < 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestria l

Plant Monocots & Dicots

Veg.Crops (10 Sp.)

(Vegetative Vigor) Acute 6 wks EC25 > 9.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

### Triclopyr Butoxyethyl Ester ( BEE ) (colored cells are most sensitive for BEE )

Habitat T axa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 0. 4 7 mg/L Highly Toxic Acceptable 4 2884501

Woodburn et al.

1993

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 1.29

(Propylene glycol

butyl ether) mg/L Moderately

Toxic Acceptable 00134181

Acc# 229783?

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus myki ss ) Acute 96h LC50 0.70 mg/L Highly Toxic Acceptable 43442602

Weinberg et al.

1994

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 24 h LC50 0. 35

- 1 .2 mg/L Highly to

Moderately

Toxic Supplemental 41971603

Gorzinski 1991

Aquatic Fresh water fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 1.46

(Propylene glycol

butyl ether) mg/L Moderately

Toxic Acceptable 00134181

Acc# 229783?

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 0. 25 mg/L Highly To xic Acceptable 42917901

Woodburn et al.

1993

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 24h LC50 0. 59 mg/L Moderately

Toxic Supplemental 41971604

Gorzinski 1991

Aquatic Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) A cute 96h LC50 0. 31 mg/L Highly Toxic Acceptable 43442601

Weinberg et al.

1994

Aquatic Freshwater fish

Coho Salmon

( Oncorhyncus kissutch ) Acute 96h LC50 0.32

- 0.33

(yolk

- sac fry)

1.0 (juvenile fry) mg/L

mg/L Highly Toxic

Moderately

Toxic Supplemental 417 36304

Barron 1987

Aquatic Freshwater fish

Fathead Minnow

( Pimephales promelas ) Acute 24h LC50 1. 7 mg/L Moderately

Toxic Supplemental 00151965

Batchelder 1981

Aquatic Marine/Estuarine fish

Inland silverside

( Menidia beryllina ) Acute 96h LC50 0.32 mg/L Highly Toxic Acceptable 42053901

Ward 1991Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic Marine/Estuarine fish

Inland silverside

( Menidia beryllina ) Acute 96h LC50 0.34 mg/L Highly Toxic Acceptable

(for formulated

product) 41969901

Ward 1991

Aquatic Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Chronic NOEC

LOEC 0.019

0.03 4 mg/L

mg/L Very Highly

Toxic

Parameter:

growth effects Acceptable 43230201

Weinberg et al.

1994

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 1. 2 mg/L Moderately

Toxic Supplemental 00151963

Batchelder 1980

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 8. 6 3 mg/L Slightly Toxic Acceptable 00151965

47006032

Milazzo 1981

Aquatic Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 0. 25 mg/L Highly Toxic Acceptable 43442603

Weinberg et al.

1994

Aquatic Mollusca

Eastern oyster

( Cras sostrea virginica )

(shell deposition) Acute 96h EC50 0.3 3

(Species) mg/L Highly Toxic Acceptable 41971602

Boeri 1991

Aquatic Mollusca

Eastern oyster

( Crassostrea virginica )

(shell deposition) Acute 96h EC50 0. 23 mg/L Highly Toxic Acceptable

(for formul ated

product) 41969903

Boeri 1991

Aquatic Crustacea

Grass Shrimp

( Palaemontes pugio ) Acute 96h LC50 1. 8 mg/L Moderately

Toxic Acceptable 41971601

Boeri 1991

Aquatic Crustacea

Grass Shrimp

( Palaemontes pugio ) Acute 96h LC50 0.7 7 mg/L Highly Toxic Acc eptable

(for formulated

product) 41969902

Ward 1991

Aquatic

plants Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute 14d EC50 0.86 mg/L Parameter :

Growth and

Reproduction Supplemental

(downgraded) 42719101

Milazzo 1993Habitat Taxa Effect

Type Endpoi nt Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic

plants Vascular aquatic plant

Duckweed

( Lemna gibba ) Chronic 14d

NOAEC < 0.111 mg/L Parameter :

Growth and

Reproduction Supplemental 42719101

Milazzo 1993

Aquatic

plants Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum

capricortum ) Acute 5d EC50 2.5 mg/L Parameter :

Growth Acceptable 41633704,

42090422

Cowgill &

Millazzo 1989

Aquat ic

plants Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 5d EC50 1.42 mg/L Parameter :

Growth Acceptable 42721101

Hughes 1993

Aquatic

plants Non

- vascular aquatic plant

Freshwater diatom

( Navicula pelliculosa ) Acute 5d EC50 0. 073 mg/L Parameter :

Growth Acceptable 42721102

Hughes 1993

Aquatic

plants

(BEE) Non

- vascular aquatic plant

Freshwater diatom

( Navicula pelliculosa ) Chronic 5d NOAEC 0.0014 mg/L Parameter :

Growth Acceptable 42721102

Hughes 1993

Aquatic

plants Non

- vas cular aquatic plant

Marine diatom

( Skeletonema costatum ) Acute 5d EC50 0.84 mg/L Parameter :

Growth Acceptable 42721103

Hughes 1993

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Acute oral 21d LD50 529 mg/kg bw Practically

Non

- Toxic Ac ceptable 41902002

Campbell & Lynn

1991

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Acute oral 14d LD50 611 mg/kg bw Practically

Non

- Toxic Acceptable 41902003

Campbell & Lynn

1991

Terrestrial Avian

Northern bobwhite Quail

( Colinus vi rginianus ) Subacute

dietary 8d LC50 6038 ppm Slightly Toxic Acceptable 00134180

Wildlife Int’l 1978

Terrestrial Avian

Northern bobwhite Quail

( Colinus virginianus ) Subacute

dietary 8d LC50 3885 ppm Slightly Toxic Acceptable 41905501

Lynn et al. 1991

Ter restrial Avian

Mallard duck

( Anas platyrhynchos ) Subacute

dietary 8d LC50 > 6689 ppm Practically

Non

- Toxic Acceptable 00134179

Wildlife Int’l 1977Habitat Taxa Effect

Type Endpoint Value

(expressed as the

acid equivalent) Unit Toxicity

category Study

Cla ssification Source

(MRID or Acc#

, author)

Terrestrial Avian

Mallard duck

( Anas platyrhynchos ) Subacute

dietary 8d LC50 > 3885 ppm Practically

Non

- Toxic Acceptable 41905501

Lynn et al. 1992

Terrestrial Rodent

Rat Acute oral LD50 578 (M & F) mg/kg Sligh tly Toxic Acceptable 40557004

Wall et al. 1987

Terrestrial Honeybee

( Apis mellifera ) Acute Contact

48h LD50 > 72 μg/bee Practically

Non

- Toxic Acceptable 41219109

Dingledine 1985

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae /A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae /A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative V igor) Acute 51d EC25 0.006 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 1995

Terrestrial

Plant Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) Acute NOAE C 0.028 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 199 5

Terrestrial

Plant Terrestrial dicot

Tomato

( Lycopersicon esculentum )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Radish ( Raphanus sativus )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acc eptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute 51d EC25 0.053 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 1995Habitat Taxa Effect

Type Endpoint Value

(expre ssed as the

acid equivalent) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Terrestrial

Plant (BEE) Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute NOAE C 0.0021 lbs/A parameter:

shoot weight Acceptable 43650 001

Schwab 1995

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Vegetative Vigor) Acute 51d EC25 0.063 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 1995

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Vegetative Vigor) Acute NOAE C < 0.063 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 1995

Terrestrial

Plant Terrestrial dicot

Sugarbeet ( Beta vulgaris )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stock dale 1990

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

Corn ( Zea mays )

(Seedl ing Emergence) Acute 21d EC25 > 8.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial monocot

Wheat ( Triticum aestivum )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acc eptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestrial dicot

Oilseed rape

( Brassica napus )

(Seedling Emergence) Acute 21d EC25 < 8.0 lbs ae/A Parameter:

emergence Acceptable 41734301

Weseloh &

Stockdale 1990

Terrestrial

Plant Terrestr ial dicot

Alfalfa ( Medicago sativa )

(Seedling Emergence) Acute 51d EC25 0.045 lbs/A parameter:

emergence Acceptable 43650001

Schwab 1995

Terrestrial

Plant (BEE) Terrestrial dicot

Alfalfa ( Medicago sativa )

(Seedling Emergence) Acute NOAE C 0.0026 lbs/A par ameter:

emergence Acceptable 43650001

Schwab 1995

### Triclopyr Butoxyethyl Ester (BEE) /Picloram ethyl ester Mixture

Habitat Taxa Effect

Type Endpoint Value

(% ai) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Aquatic

pla nts Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute 14d EC50

NOEC 6.6

( 9.2 ; 99.8)

1.03

( 1.43 ; 15.9)

(TBEE = 9.2% ai) mg/L

mg/L Parameter :

Growth

(plants) Acceptable 43230310

Milazzo 1994

Aquatic

plants Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 5d EC50 0.20

( 0.276 ; 3.0)

(TBEE = 9.2% ai) mg/L Parameter :

Growth Invalid 43230307

Boeri et al. 1994

Aquatic

plants Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum

capricortum ) Acute 5d E C50

NOEC 0.32

(0.441; 4.9 )

0.211

( 0.294 ; 3.2)

(TBEE = 9.2% ai) mg/L

mg/L Parameter :

Growth Supplemental 42 645901

Hughes et al. 1993

Aquatic

plants Non

- vascular aquatic plant

Marine diatom

( Skeletonema costatum ) Acute 5d EC50 0.12

( 0.166 ; 1.8)

(TBEE = 9.2% ai) mg/L Parameter :

Growth Invalid 43230304

Boeri et al. 1994

Aquatic

plants Non

- vascular aquatic plant

Freshwater diatom

( Navicula pelliculosa ) Acute 5d EC50 0.36

( 0.50 ; 5.4)

(TBEE = 9.2% ai) mg/L Parameter :

Growth Invalid 43230301

Boeri et a l. 1994

Terrestrial Honeybee

( Apis mellifera ) Acute Contact

44h LD50 > 1.62

( > 2 .2 5 ; > 25)

(TBEE = 9.2% ai) μg/bee Practically

Non

- Toxic Acceptable 42625901

Hoxter et al.1992

Terrestrial

Plant Terrestrial dicot

Radish ( Raphanus sativus )

( Vegetative Vigor ) Acute 21 d EC25

NOEL 0.008

( 0.035 )

0.0035

( 0.015 )

(TBEE = 23.5% ai) lbs ae /A

lbs ae /A Parameter:

heigh t Supplemental 41296501

Weseloh and

Stockdale 1989

Terrestrial

Plant Terrestrial dicot

Soybean ( Glycine max )

( Vegetative Vigor ) Acute 55 d EC25

NOEL 0.00005

( 0.00021 )

0.000026

( 0.00011 )

(TBEE = 23.5% ai) lbs ae / A

lbs ae /A Parameter:

height Supplemen tal 41296501

Weseloh and

Stockdale 1989Habitat Taxa Effect

Type Endpoint Value

(% ai) Unit Toxicity

category Study

Classification Source

(MRID or Acc#

, author)

Terrestrial

Plant Terrestrial monocot

Wheat ( Triticum aestivum )

(Vegetative Vigor) Acute 42 d EC25

NOEL 0.05

( 0.21 )

0.0146

( 0.062 )

(TBEE = 23.5% ai) lbs ae /A

lbs ae /A Parameter:

height Supplemental 41296501

Weseloh and

Stockdale 1989

Terrestrial

Plant Terrestrial dicot

Drybean ( Phaseolus vulgaris )

(Seedling Emergence ) Acute 14 d EC25

NOEL 0.0000009

( 0.000004 )

< 0.000007

( < 0.00003 )

(TBEE = 23.5% ai) lbs ae /A

lbs ae /A Parameter:

emergence Supplemental 41296501

Weseloh and

Stockdale 1989

Terrestrial

Plant Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute 14 d EC25

NOEL 0.008

( 0.035 )

0.004

( 0. 0156 )

(TBEE = 23.5% ai) lbs ae /A

lbs ae /A Parameter:

emergence Supplemental 41296501

Weseloh and

Stockdale 1989

Terrestrial

Plant Terrestrial monocot

Wheat ( Triticum aestivum )

(Seedling Emergence) Acute 21d EC25

NOEL 0.006

( 0.02 5 )

0.02

( 0.08 )

(TBEE = 23.5% ai) lbs ae /A

lbs ae /A Parameter:

emergence Supplemental 41296501

Weseloh and

Stockdale 1989

Terrestrial

Plant Terrestrial

Lima bean ( Phaseolus lunatus )

(Seedling Emergence) Acute 21d EC25

NOEL 0.00003

(0.00004; 0.00042 )

( TBEE = 9.2% ai) lbs ae /A

lbs ae /A Parameter:

shoot height Supplemental 43276601

Schwab 1994

Terrestrial

Plant Terrestrial monocot

Barley ( Hordeum vulgare )

(Seedling Emergence) Acute 21d EC25

NOEL 0.57

(0.791; 8.6 )

(TBEE = 9.2% ai) ) lbs ae /A

lbs ae /A Parameter:

shoot weight Supplemental 43276601

Schwab 1994

### Combined

– Most sensitive when converted to acid equivalent (Acid, TEA or BEE)

Habitat Taxa Effect

Type Endpoint Form

Tested Value

(acid equivalent) Value

(Original Value) Unit Toxicity

category Study

Classification Source

(MRID or Acc#,

author)

Aquatic

(BEE) Freshwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 F (Garlon 4)

62.9% ai

TBEE 0.32 0.44 mg/L Highly Toxic Acceptable 43442601

Weinberg et al.

1994

Aquatic

(BEE) Fres hwater fish

Bluegill sunfish

( Lepomis macrochirus ) Acute 96h LC50 TGAI

96.98% ai

TBEE 0.26 0.36 mg/L Highly Toxic Acceptable 42917901

Woodburn et al.

1993

Aquatic

(BEE) Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 F (Garlon 4)

62. 9% ai

TBEE 0.70 0.98 mg/L Highly Toxic Acceptable 43442602

Weinberg et al.

1994

Aquatic

(BEE) Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Acute 96h LC50 TGAI

96.98% ai

TBEE 0.47 0.65 mg/L Highly Toxic Acceptable 42884501

Woodburn et al.

1993

Aquatic

(BEE) Freshwater fish

Rainbow Trout

( Oncorhynchus mykiss ) Chronic NOEC

LOEC TGAI

96.98% ai

TBEE 0.019

0.034 0.0263

0.048 mg/L Very Highly

Toxic

Parameter:

growth effects Acceptable 43230201

Weinberg et al.

1994

Aquatic

(TEA) Freshwater fish

Fathead Minnow

( Pimephales promelas ) Chronic NOEC

LOEC F

44.9% ai

TEA > 32.2

<50.2 >46.7

(>104)

<72.7

(<162) mg/L Parameter:

Length Acceptable 00151958

Mayes 1983

Aquatic

(BEE) Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 F (Ga rlon 4)

62.2% ai

TBEE 0.25 0.35 mg/L Highly Toxic Acceptable 43442603

Weinberg et al.

1994

Aquatic

(BEE) Freshwater invertebrate

Water flea

( Daphnia magna ) Acute 48h EC50 TGAI

96.4% ai

TBEE 1.2 1.7 (nominal) mg/L Moderately

Toxic Supplemental 00151963

Batchelder 1980

Aquatic

(TEA) Freshwater invertebrate

Water flea

( Daphnia magna ) Chronic NOEC

LOEC F

44.9% ai

TEA 25

46.2 36.2

(80.7)

66.9

(149.0) mg/L total young

and mean

brood size Acceptable 00151959,

42090411,

92189013

Gerisch 1982

Aquatic

p lants

(BEE) Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute 14d EC50 TGAI

96.98% ai

TBEE 0.86 1.2 mg/L Parameter :

Growth and

Reproduction Supplemental 42719101

Milazzo et al.

1993Habitat Taxa Effect

Type Endpoint Form

Tested Value

(acid equivalent ) Value

(Original Value) Unit Toxicity

category Study

Classification Source

(MRID or Acc#,

author)

Aquatic

plants

(BEE) Duckweed

( Lemna gibba ) Chronic 14d

NOAEC TGAI

96.98% ai

TBEE < 0.111 < 0.155 mg/L Parameter :

Growth and

Reproduction Supplemental 42719101

Milazzo et al.

1993

Aquatic

plants

(TEA) Vascular aquatic plant

Duckweed

( Lemna gibba ) Acute 14d EC50 F

44.9% ai

TEA 6.1 8.8

(19.5) mg/L Parameter :

Growth and

Reproduction Acceptable 41633709

Cowgill 1987

Aquat ic

plants

(BEE) Non

- vascular aquatic plant

Freshwater diatom

( Navicula pelliculosa ) Acute 5d EC50 TGAI

96.98% ai

TBEE 0.073 0.102 mg/L Parameter :

Growth Acceptable 42721102

Hughes 1993

Aquatic

plants

(BEE) Non

- vascular aquatic plant

Freshwater diato m

( Navicula pelliculosa ) Chronic 5d

NOAEC TGAI

96.98% ai

TBEE 0.0014 0.002 mg/L Parameter :

Growth Acceptable 42721102

Hughes 1993

Aquatic

plants

(TEA) Non

- vascular aquatic plant

Blue

- green algae

( Anabeana flos

- aquae ) Acute 7d EC50 F

45% ai

TEA 4.1 5 .9 mg/L Parameter :

Growth Acceptable 41633706

Hughes 1987

Aquatic

plants

(BEE) Non

- vascular aquatic plant

Green algae

( Kirchneria subcapitata )

(Formerly Selenastrum

capricortum ) Acute 5d EC50 F

61.3% ai

TBEE 2.5 3.4

(5.6) mg/L Parameter :

Growth Acce ptable 41633704,

42090422

Cowgill &

Millazzo 1989

Terrestrial

(BEE) Avian

Northern bobwhite Quail

( Colinus virginianus ) Acute

oral 21d LD50 TGAI

96.1% ai

TBEE 529 735 mg/kg bw Practically

Non

- Toxic Acceptable 41902002

Campbell &

Lynn 1991

Terrestrial

( BEE) Avian

Northern bobwhite Quail

( Colinus virginianus ) Acute

oral 14d LD50 F (Garlon 4)

62.9% ai

TBEE 611 849

(1350) mg/kg bw Practically

Non

- Toxic Acceptable 41902003

Campbell &

Lynn 1991

Terrestrial

(Acid) Avian

Northern bobwhite Quail

( Colinus virgi nianus ) Subacute

dietary LC50 TGAI

Acid 2934 2934 ppm Slightly Toxic Acceptable 40346403

Dow Chemical

1976

Terrestrial

(BEE) Avian

Northern bobwhite Quail

( Colinus virginianus ) Subacute

dietary 8d LC50 TGAI

96.1% ai

TBEE 3885 5401 ppm Slightly Toxic Supplemental 41905501

Lynn et al. 1991

Terrestrial

(BEE) Avian

Mallard duck

( Anas platyrhynchos ) Subacute

dietary 8d LC50 TGAI

96.1% ai

TBEE > 3,885 > 5,401 ppm Practically

Non

- Toxic Acceptable 41905502

Lynn et al. 1992Habitat Taxa Effect

Type Endpoint Form

Tested Value

(acid equivalent) Value

(Original Value) Unit Toxicity

category Study

Classification Source

(MRID or Acc#,

author)

Terrestrial

(Acid) Avian

Mallard duck

( Anas platyrhynchos ) Chronic NOAEC

LOAEC TGAI

98.9% ai

Acid 100

200 100

200 pp m # of 14 d old

survivors Acceptable 00031250

Beavers & Fink

1980

Terrestrial

(Acid) Avian

Northern bobwhite Quail

( Colinus virginianus ) Chronic N OAEC

LOAEC

LOAEC TGAI

98.9% ai

Acid 500

>500

200 500

>500

200 ppm

ppm

ppm No sign.

reproductive

impairment Ac ceptable 00031251

Beavers & Fink

1979

Terrestrial

(Acid) Rodent

Rat Acute

oral LD50 TGAI

Acid 729 (M)

630 (F) 729 (M)

630 (F) mg/kg Slightly Toxic Acceptable 00031940

Henck et al. 1979

Terrestrial

(TBEE) Rodent

Rat Acute

oral LD50 TGAI

96% ai

TBEE 57 8 (M &F) 803 (M & F) mg/kg Slightly Toxic Acceptable 40557004

Wall et al. 1987

Terrestrial

(TEA) Rodent

Rat Acute

oral LD50 TGAI

44.9 % ai

TEA 572 (M &F) 1847 (M & F) mg/kg Slightly Toxic Acceptable 41443301

Mizell & Lomax

1988

Terrestrial

(Acid) Roden t Chronic NOAEL

LOAEL TGAI

99.4% ai

Acid 25

250 25

250 mg/kg bw

mg/kg bw Reproductive/

Systemic Acceptable

(RED 1998) 43545701

Vedula et al 1995

Terrestrial

(Acid) Rodent Chronic NOAEL

LOAEL TGAI

99.4% ai

Acid 5

25 5

25 mg/kg bw

mg/kg bw Rep roductive/

Offspring Acceptable

(HED 2002) 43545701

Vedula et al 1995

Terrestrial

(Acid) Honeybee

( Apis mellifera ) Acute Contact

48h LD50 TGAI

99.2% ai

Acid >100 >100 μg/bee Practically

Non

- Toxic Acceptable 40356602

Dingledine 1985

Terrestrial

(BEE) Honeybee

( Apis mellifera ) Acute Contact

48h LD50 TGAI

97.7% ai

TBEE > 72 > 100 μg/bee Practically

Non

- Toxic Acceptable 41219109

Dingledine 1985

Terrestrial

Plant (TEA) Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) Acute 14d EC25 F

46.2% ai

TEA 0.005 0.0076 lbs/A parameter:

shoot length Acceptable 43129801

Schwab 1993

Terrestrial

Plant (BEE) Terrestrial dicot

Sunflower

( Helianthus annus )

(Vegetative Vigor) Acute 51d EC25 F (Garlon 4)

62.2% ai

TBEE 0.006 0.0089 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 1995Habitat Taxa Effect

Type Endpoint Form

Tested Value

(acid equivalent) Value

(Original Value) Unit Toxicity

category Study

Classification Source

(MRID or Acc#,

author)

Terrestrial

Plant (BEE) Terrestrial mon ocot

Onion ( Allium cepa )

(Vegetative Vigor) Acute 51d EC25 F (Garlon 4)

62.2% ai

TBEE 0.063 0.0888 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 1995

Terrestrial

Plant (TEA) Terrestrial monocot

Onion ( Allium cepa )

(Vegetative Vigor) Acute 14 d EC25 F

46.2% ai

TEA 0.114 0.166 lbs/A parameter:

shoot weight Acceptable 43129801

Schwab 1993

Terrestrial

Plant (BEE) Terrestrial dicot

Alfalfa ( Medicago sativa )

(Seedling Emergence) Acute 51d EC25 F (Garlon 4)

62.2% ai

TBEE 0.045 0.0622 lbs/A parameter:

emergence Acceptable 43650001

Schwab 1995

Terrestrial

Plant (BEE) Terrestrial monocot

Onion ( Allium cepa )

(Seedling Emergence) Acute 51d EC25 F (Garlon 4)

62.2% ai

TBEE 0.053 0.0732 lbs/A parameter:

shoot weight Acceptable 43650001

Schwab 199 5