2,4-D

CAS RN: 94-75-7

Ecotoxicity Values

LC50; Species: Anas platyrhynchos (Mallard Duck) age 10 days; dietary (chemical incorporated into food) >5620 ppm for 8 days
LD50; Species: Anas platyrhynchos (Mallard duck) female 3-5 month old; oral >1000 mg/kg /Technical grade acid (>99%)/
LD50; Species: Anas platyrhynchos (mallard) male 4 month old; oral >2000 mg/kg /Technical grade acid (>99%)/
LC50; Species: Colinus virginianus (Northern Bobwhite Quail) age 10 days; dietary (chemical incorporated into food) >5620 ppm for 8 days
LD50; Species: Coturnix japonica (Japanese quail) male 2 month old; oral 668 mg/kg (95% confidence limit: 530-842 mg/kg) /Technical grade acid (>99%)/
LD50; Species: Coturnix japonica (Japanese quail) male and female 14 days old; oral >5000 ppm /Technical grade acid, 75%/
LD50; Species: Apis mellifera (Honey bee) topical, general >18.13 ug/bee
LD50; Species: Phasianus colchicus (Pheasant) female 3-4 months old; oral 472 mg/kg (95% confidence limti: 340-654 mg/kg) /Technical grade acid (>99%)/
LD50; Species: Columba livia (rock dove) male and female; oral 668 mg/kg (95% confidence limit 530-842 mg/kg) /Technical grade acid (> 99%)/
LD50; Species: Alectoris chukar (chukar) male and female 4 month old; oral 200-400 mg/kg /Technical grade acid (>99%)/
LD50; Species: Odocoileus hemionus hemionus (Mule Deer) male and female, 8-11 month old; oral 400-800 mg/kg /Technical grade acid (>99%)/
LC50; Species: Salvelinus namaycush (lake trout) weight 0.3 g; Conditions: static bioassay at 10 deg C, without aeration, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: 45 mg/L for 96 hr (95% confidence limit 35-56 mg/L) /2,4-D acid, granular 100%/
LC50; Species: Salmo clarki (cutthroat trout) weight 0.3 g; Conditions: static bioassay at 10 deg C, without aeration, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: 64 mg/L for 96 hr (95% confidence limit 57-72 mg/L) /2,4-D acid, granular 100%/
LC50; Species: Lepomis macrochirus (bluegill fish); Concentration: 0.9 ppm for 48 hr /Conditions of bioassay not specified/
LC50; Species: /Oncorhynchus mykiss/ (rainbow trout); Concentration: 1.1 ppm for 48 hr /Conditions of bioassay not specified/
LC50; Species: Morone saxatilis (striped bass); Conditions: static bioassay; Concentration: 70.1 mg/L for 96 hr
LC50; Species: Lepomis gibbosus (pumpkinseed fish); Conditions: static bioassay; Concentration: 95 mg/L for 96 hr
LC50; Species: Morone americana (white perch); Conditions: staic bioassay; Concentration: 40 mg/L for 96 hr
LC50; Species: Anguilla rostrata (American eel); Conditions: static bioassay; Concentration: 300 mg/L for 96 hr
LC50; Species: Cyprinus carpio (carp); Conditions: static bioassay; Concentration: 96.5 mg/L for 96 hr
LC50; Species: Lebistes reticulatus (guppy); Conditions: static bioassay; Concentration: 70.7 mg/L for 96 hr
LC50; Species: Alburnus alburnus (bleak) embryo; Concentration: 159 mg/L for 12 hr /Conditions of bioassay not specified; sodium salt/
LC50; Species: Alburnus alburnus (bleak) embryo; Concentration: 129 mg/L for 24 hr /Conditions of bioassay not specified; sodium salt/
LC50; Species: Alburnus alburnus (bleak) embryo; Concentration: 64 mg/L for 36 hr /Conditions of bioassay not specified; sodium salt/
LC50; Species: Alburnus alburnus (bleak) embryo; Concentration: 13 mg/L for 48 hr /Conditions of bioassay not specified; sodium salt/
LC50; Species: Lebistes reticulatis (guppy); Concentration: 3758.4 mg/L for 24 hr /Conditions of bioassay not specified; SRP: Unspecified salt or ester of 2,4-D/
LC50; Species: Daphnia magna (water flea); Concentration: 363-389 mg/L for 48 hr /Conditions of bioassay not specified, SRP: Unspecified salt or ester of 2,4-D/
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) weight 0.28 g; Conditions: freshwater, static; Concentration: >100000 ug/L for 96 hr /80% purity/
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) weight 0.34 g; Conditions: freshwater, static; Concentration: 358000 ug/L for 96 hr (95% confidence interval: 320000-400000 ug/L) /98.7% purity/
LC50; Species: Pseudokirchneriella subcapitata (Green Algae); Conditions: freshwater, static; Concentration: 20700 ug/L for 5 days /96.1% purity/
EC50; Species: Daphnia magna (Water Flea) age 1st instar; Conditions: freshwater, static; Concentration: 25000 ug/L for 48 hr (95% confidence interval: 17600-32600 ug/L); Effect: intoxication, immobilization /98.7% purity/
LC50; Species: Ceriodaphnia dubia (Water Flea); Conditions: freshwater, static, 22 deg C, pH 8.2-8.3, hardness 162-178 mg/L CaCO3, alkalinity 107-114 mg/L CaCO3, dissolved oxygen 7.8-8.1 mg/L; Concentration: 272500 ug/L for 24 hr /formulation/
LC50; Species: Daphnia magna (Water Flea); Conditions: freshwater, static, 22 deg C, pH 8.2-8.3, hardness 162-178 mg/L CaCO3, alkalinity 107-114 mg/L CaCO3, dissolved oxygen 7.8-8.1 mg/L; Concentration: 415700 ug/L for 24 hr /formulation/
LC50; Species: Daphnia magna (Water Flea) age <24 hr; Conditions: freshwater, renewal, 20 deg C; Concentration: >10000 ug/L for 1, 2, or 8 days /formulation/
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) weight 3.6-4.6 g; Conditions: freshwater, static; Concentration: 362380 ug/L for 24 hr /98% purity/
EC50; Species: Danio rerio (Zebra Danio) embryo 6 hr postfertilization; Conditions: freshwater, renewal; Concentration: 73 uM for 96 hr; Effect: increase abnormal development /100% purity/
LC50; Species: Danio rerio (Zebra Danio) embryo 6 hr postfertilization; Conditions: freshwater, renewal; Concentration: 132 uM for 96 hr /100% purity/
LC50; Species: Lepomis macrochirus (Bluegill) weight 0.15 g; Conditions: freshwater, static; Concentration: 263000 ug/L for 96 hr (95% confidence interval: 220000-302000 ug/L) /98.7% purity/
LC50; Species: Menidia beryllina (Inland Silverside); Conditions: saltwater, flow through; Concentration: 175000 ug/L for 96 hr (95% confidence interval: 128000-217000 ug/L) /96.1% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) weight 0.14 g; Conditions: freshwater, static; Concentration: 320000 ug/L for 96 hr (95% confidence interval: 299000-343000 ug/L) /98.7% purity/
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