Paraquat

CAS RN: 4685-14-7

Ecotoxicity Values

LD50; Species: Anas platyrhynchos (Mallard) oral 199 mg/kg (95% confidence limit 144-276 mg/kg)
LD50; Species: Anas platyrhynchos (Mallard) percutaneous 600 mg/kg (95% confidence limit 424-848 mg/kg)
LC50; Species: Coturnix japonica (Japanese quail) juvenile 14 days post-hatch; diet 948 ppm for 5 days (95% confidence interval: 768-1168 ppm)
LD50; Species: Drosophila melanogaster (Fruit fly) age 5 days, wild type Oregon-R-strain; environmental exposure route 20 mM for 48 hr
EC50; Species: Helix aspersa (Brown gardensnail) age 6-8 wk, weight 3 g (2-3 g); diet (artificial soil media) 352 mg/kg for 10 days (95% confidence interval: 291-426 mg/kg); Effect: general morphological changes (increased drooping eyestalk, edema)
LC50; Species: Helix aspersa (Brown gardensnail) age 6-8 wk, weight 3 g (2-3 g); diet (artificial soil media) 659 mg/kg for 10 days (95% confidence interval: 539-806 mg/kg)
LC50; Species: Lumbricus terrestris (Earthworm) mature, weight 3000-4200 mg; direct application (natural soil media: 84.7% sand, 12.1% silt, 3.2% clay, pH 6.1, and 1.0% organic matter, 35% moisture) >1000 mg/kg soil for 14 days
LC50; Species: Eisenia fetida (Earthworm) mature, weight 200-350 g; direct application (artificial soil media: 83.5% sand, 5% clay, pH 7, and 10% organic matter, 60% moisture) >1000 mg/kg soil for 14 days
EC50: Species: Chlamydomonas eugametos (Green algae) 1X10+5 cells/mL; Conditions: freshwater, static, 18 deg C; Concentration: 0.28 uM for 96 hr; Effect: decreased population growth rate /formulation/
EC50: Species: Chlorella pyrenoidosa (Green algae); Conditions: freshwater, static, 25 deg C; Concentration: 0.1 ug/L for 96 hr; Effect: decreased population growth rate /20% purity/
EC50; Species: Chlorella vulgaris (Green algae) 8X10+5 cells/mL; Conditions: freshwater, static, 25 deg C; Concentration: 0.2 ug/L for 96 hr; Effect: decreased population growth rate /20% purity/
EC50; Species: Pseudokirchneriella subcapitata (Green algae); Conditions: freshwater, static; Concentration: 1.16 uM for 48 hr; Effect: decreased population growth rate /100% purity/
IC50; Species: Pseudokirchneriella subcapitata (Green algae) free cell culture; Conditions: freshwater, (exposure type not given), 26 deg C, pH 7; Concentration: 1.8 mg/L for 3.5-4 days; Inhibited effect: biochemistry, decreased chlorophyll /99% purity/
IC50; Species: Pseudokirchneriella subcapitata (Green algae) immobilized cells; Conditions: freshwater, (exposure type not given), 26 deg C, pH 7; Concentration: 7.8 mg/L for 3.5-4 days; Inhibited effect: biochemistry, decreased chlorophyll /99% purity/
EC50; Species: Dunaliella tertiolecta (Green algae) log growth phase, axenic, Woods Hole culture; Conditions: saltwater, static, 20 deg C, pH 7.9-8.1, salinity 30 ppt; Concentration: 2500000 ug/L for 1.5 hr; Effect: physiology, photosynthesis /formulation/
EC50; Species: Isochrysis galbana (Haptophyte) log growth phase, axenic, Woods Hole culture; Conditions: saltwater, static, 20 deg C, pH 7.9-8.1, salinity 30 ppt; Concentration: 5000000 ug/L for 1.5 hr; Effect: physiology, photosynthesis /formulation/
EC50; Species: Phaeodactylum tricornutum (Diatom) log growth phase, axenic, Woods Hole culture; Conditions: saltwater, static, 20 deg C, pH 7.9-8.1, salinity 30 ppt; Concentration: 3500000 ug/L for 1.5 hr; Effect: physiology, photosynthesis /formulation/
EC50; Species: Xenopus laevis (African clawed frog) larvae; Conditions: freshwater, renewal, 24 deg C; Concentration: 180 ug/L for 96 hr (95% confidence interval: 160-200 ug/L); Effect: abnormal development (malformations adjusted for DMSO control) /99% purity/
LC50; Species: Xenopus laevis (African clawed frog) larvae; Conditions: freshwater, renewal, 24 deg C; Concentration: 10000 ug/L for 24 hr /99% purity/
LC50; Species: Xenopus laevis (African clawed frog) larvae; Conditions: freshwater, renewal, 24 deg C; Concentration: 14550 ug/L for 48 hr (95% confidence interval: 9800-21600 ug/L) /99% purity/
LC50; Species: Xenopus laevis (African clawed frog) larvae; Conditions: freshwater, renewal, 24 deg C; Concentration: 3300 ug/L for 72 hr (95% confidence interval: 2300-4550 ug/L) /99% purity/
LC50; Species: Xenopus laevis (African clawed frog) larvae; Conditions: freshwater, renewal, 24 deg C; Concentration: 670 ug/L for 96 hr (95% confidence interval: 570-810 ug/L) /99% purity/
EC50; Species: Daphnia magna (Water flea) age <24 hr; Conditions: freshwater, static, 20 deg C, pH 7.8, hardness 95.8 mg/L CaCO3, alkalinity 189.3 mg/L CaCO3, dissolved oxygen 8.4 mg/L; Concentration: 16470 ug/L for 24 hr (95% confidence interval: 14400-19300 ug/L); Effect: intoxication, immobilization /Osaquat, 27.6% AI/
EC50; Species: Daphnia magna (Water flea) age <24 hr neonate; Conditions: freshwater, static, 21 deg C, pH 7.6; Concentration: 0.0627 mM for 24 hr; Effect: intoxication, immobilization
EC50; Species: Daphnia magna (Water flea) age <24 hr; Conditions: freshwater, static, 20 deg C, pH 7.8, hardness 95.8 mg/L CaCO3, alkalinity 189.3 mg/L CaCO3, dissolved oxygen 8.4 mg/L; Concentration: 4550 ug/L for 48 hr (95% confidence interval: 4100-5100 ug/L); Effect: intoxication, immobilization /Osaquat, 27.6% AI/
EC50; Species: Daphnia magna (Water flea) age 24 hr larvae; Conditions: freshwater, static, 23 deg C; Concentration: 1800 ug/L for 48 hr; Effect: intoxication, immobilization /20% Paraquat, 10% Lissapol/
EC50; Species: Daphnia magna (Water flea) adult; Conditions: freshwater, static, 23 deg C; Concentration: 3200 ug/L for 48 hr; Effect: intoxication, immobilization /20% Paraquat, 10% Lissapol/
LC50; Species: Daphnia magna (Water flea) age 24 hr, larvae; Conditions: freshwater, static, 23 deg C; Concentration: 2800 ug/L for 48 hr /formulation, 200 g/L paraquat/
LC50; Species: Daphnia magna (Water flea) adult; Conditions: freshwater, static, 23 deg C; Concentration: 3700 ug/L for 48 hr /formulation, 200 g/L paraquat/
LC50; Species: Daphnia pulex (Water flea) 1st instar; Conditions: static without aeration, 16 deg C, pH 7.2-7.5, hardness 40-50 mg/L as CaCO3, alkalinity 30-35 mg/L CaCO3; Concentration: 4.0 mg/L for 48 hr (95% confidence interval: 2.7-6.0 mg/L) Soluble concentrate, 2 lb (cation)/gal. /Paraquat dichloride/
EC50; Species: Danio rerio (Zebra danio); Conditions: freshwater, static, 25 deg C; Concentration: 7500 ug/L for 96 hr; Effect: intoxication, immobilization
LC50; Species: Danio rerio (Zebra danio); Conditions: freshwater, static, 25 deg C; Concentration: 48500 ug/L for 96 hr
EC50; Species: Poecillia reticulate (Guppy); Conditions: freshwater, static, 25 deg C; Concentration: 15000 ug/L for 96 hr; Effect: intoxication, immobilization
LC50; Species: Poecilia reticulata (Guppy); Conditions: freshwater, static, 25 deg C; Concentration: 22000 ug/L for 96 hr
EC50; Species: Simocephalus serrulatus (water flea) 1st instar; Conditions: static without aeration, 16 deg C, pH 7.2-7.5, hardness 40-50 mg/L CaCO3, alkalinity 30-35 mg/L; Concentration: 3.7 mg/L for 48 hr (95% confidence interval 2.8-4.8 mg/L) Soluble concentrate, 2 lb (cation)/gal. /Paraquat dichloride/
IC50; Species: Artemia salina (Brine shrimp) nauplii; Conditions: saltwater, static; Concentration: 5.6 mM for 24 hr (95% confidence interval: 4.8-6.5 mM); Effect: increased mortality /formulation/
LC50; Species: Gammarus fasciatus (freshwater shrimp) mature; Conditions: static bioassay without aeration, 21 deg C, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: 11 mg/L for 96 hr (95% confidence interval: 8.1-15 mg/L). Soluble concentrate, 2 lb (cation)/gal /Paraquat dichloride/
LC50; Species: Pteronarcys (Stonefly) second year class; Conditions: static bioassay without aeration, 16 deg C, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: >100 mg/L for 96 hr. Soluble concentrate, 2 lb (cation)/gal. /Paraquat dichloride/
LC50; Species: Ictalurus punctatus (Channel catfish) weight 1.4 g; Conditions: static bioassay without aeration, 18 deg C, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: >100 mg/L for 96 hr /Technical material 42% (cation)/
LC50; Species: Oncorhynchus mykiss (Rainbow trout) weight 0.5 g; Conditions: static bioassay without aeration, 13 deg C, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: 15 mg/L for 96 hr (95% confidence interval: 11-19 mg/L). Soluble concentrate, 2 lb (cation)/gal. /Paraquat dichloride/
LC50; Species: Lepomis macrochirus (Bluegill) weight 0.9 g; Conditions: static bioassay without aeration, 24 deg C, pH 7.2-7.5, water hardness 40-50 mg/L as calcium carbonate and alkalinity of 30-35 mg/L; Concentration: 13.0 mg/L for 96 hr (95% confidence interval 8.5-19.0 mg/L). Soluble concentrate, 2 lb (cation)/gal. /Paraquat dichloride/
LC50; Species: Poecilia mexicana (Shortfin molly); Conditions: static bioassay; Concentration: 12.53 mg/L for 24 hr
Find more information on this substance at: PubChem, PubMed