Naphthalene

CAS RN: 91-20-3

Ecotoxicity Values

LC50; Species: Oncorhynchus gorbuscha (pink salmon); Concentration: 1.4 mg/L for 96 hr at 4 deg C; 1.8 mg/L for 96 hr at 8 deg C; 1.2 mg/L for 96 hr at 12 deg C /Conditions of bioassay not specified/
LC50; Species: Pandalus goniurus (shrimp); Concentration: 2.2 mg/L for 96 hr at 4 deg C; 1.02 mg/L for 96 hr at 8 deg C; 0.97 mg/L for 96 hr at 12 deg C /Conditions of bioassay not specified/
LC50; Species: Parhyale hawaiensis (amphipod); Concentration: 15 ppm for 24 hr open bowl; 6.5 ppm for 24 hr closed bottle /Conditions of bioassay not specified/
LC50; Species: Pimephales promelas (fathead minnow) weight 116 mg; Conditions: flow-through bioassay, dissolved oxygen 7.4 (4.6-8.8) mg/L, water hardness 44.9 (42.4-46.6) mg/L as CaCO3, pH 6.9-7.7, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, 26.4 +/- 1.4 deg C; Concentration: 7.76 (7.39-8.14) mg/L for 24 hr /Purity 98%/
LC50; Species: Pimephales promelas (fathead minnow) weight 116 mg; Conditions: flow-through bioassay, dissolved oxygen 7.4 (4.6-8.8) mg/L, water hardness 44.9 (42.4-46.6) mg/L as CaCO3, pH 6.9-7.7, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, 26.4 +/- 1.4 deg C; Concentration: 6.35 (5.95-6.77) mg/L for 48 hr /Purity 98%/
LC50; Species: Pimephales promelas (fathead minnow) weight 116 mg; Conditions: flow-through bioassay, dissolved oxygen 7.4 (4.6-8.8) mg/L, water hardness 44.9 (42.4-46.6) mg/L as CaCO3, pH 6.9-7.7, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, 26.4 +/- 1.4 deg C; Concentration: 6.08 (5.74-6.44) mg/L for 72 and 96 hr /Purity 98%/
EC50; Species: Chlorella vulgaris (Green Algae); Conditions: freshwater, static, 20 deg C; Concentration: 33000 ug/L for 24 hr; Effect: growth, general /formulation/
EC50; Species: Pseudokirchneriella subcapitata (Green Algae); Conditions: freshwater, static; Concentration: 2960 ug/L for 4 hr (95% confidence interval: 2410-3920 ug/L); Effect: physiology, photosynthesis
EC50; Species: Daphnia magna (Water Flea) age <24 hr; Conditions: freshwater, static; Concentration: 1600 ug/L for 48 hr (95% confidence interval: 1300-2000 ug/L); Effect: intoxication, immobilization /100% purity/
EC50; Species: Daphnia magna (Water Flea); Conditions: freshwater, static; Concentration: 15000 ug/L for 24 hr; Effect: behavior, equilibrium /formulation/
EC50; Species: Daphnia magna (Water Flea) age <24 hr; Conditions: freshwater, static, dissolved oxygen > or =2 mg/L; Concentration: 2305 ug/L for 24 hr (95% confidence interval: 2128-2497 ug/L); Effect: intoxication, immobilization /> or =97% purity/
EC50; Species: Daphnia magna (Water Flea) age <24 hr; Conditions: freshwater, static, dissolved oxygen > or =2 mg/L; Concentration: 2194 ug/L for 48 hr (95% confidence interval: 1958-2459 ug/L); Effect: intoxication, immobilization /> or =97% purity/
LC50; Species: Daphnia magna (Water Flea) age < or =24 hr; Conditions: freshwater, static, 22 deg C, pH 7.4-9.4, dissolved oxygen 6.5-9.1 mg/L; Concentration: 17000 ug/L for 24 hr (95% confidence interval: 11000-25000 ug/L) /> or =80% purity/
LC50; Species: Daphnia magna (Water Flea) age < or =24 hr; Conditions: freshwater, static, 22 deg C, pH 7.4-9.4, dissolved oxygen 6.5-9.1 mg/L; Concentration: 8600 ug/L for 48 hr (95% confidence interval: 5000-15000 ug/L) /> or =80% purity/
LC50; Species: Daphnia magna (Water Flea) age 24 hr juvenile first instar; Conditions: freshwater, static, 19.5-20.5 deg C; Concentration: 2160 ug/L for 48 hr (95% confidence interval: 1790-2560 ug/L)
LC50; Species: Daphnia magna (Water Flea) mixed ages; Conditions: freshwater, static, 19 deg C; Concentration: 22600 ug/L for 48 hr (95% confidence interval: 17800-27200 ug/L) /formulation/
LC50; Species: Micropterus salmoides (Largemouth Bass) embryo; Conditions: freshwater, flow through, 20.2-23.2 deg C, pH 7.4-8.1, hardness 86.8-116.3 mg/L CaCO3, dissolved oxygen 7.1-8.4 mg/L; Concentration: 240 ug/L for 72 hr
LC50; Species: Micropterus salmoides (Largemouth Bass) larvae; Conditions: freshwater, flow through, 20.2-23.2 deg C, pH 7.4-8.1, hardness 86.8-116.3 mg/L CaCO3, dissolved oxygen 7.1-8.4 mg/L; Concentration: 510 ug/L for 7 days (95% confidence interval: 330-1160 ug/L)
LC50; Species: Micropterus salmoides (Largemouth Bass) eggs and larvae; Conditions: freshwater, flow through, 20.2-23.2 deg C, pH 7.41-8.10, hardness 86.8-116.3 mg/L CaCO3, dissolved oxygen 7.1-8.4 mg/L; Concentration: 680 ug/L for 7 days (95% confidence interval: 310-9700 ug/L)
LC50; Species: Lepomis macrochirus (Bluegill) weight 0.62 g; Conditions: freshwater, renewal; Concentration: 3200 ug/L for 96 hr (95% confidence interval: 2300-4500 ug/L) /100% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) age 31-35 days, weight 116 mg; Conditions: freshwater, flow through, 24.6 deg C, pH 6.9-7.7, hardness 44.9 (42.4-46.6) mg/L CaCO3, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, dissolved oxygen 7.4 (4.6-8.8) mg/L; Concentration: 7760 ug/L for 24 hr (95% confidence interval: 7390-8140 ug/L) /98% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) age 31-35 days, weight 116 mg; Conditions: freshwater, flow through, 24.6 deg C, pH 6.9-7.7, hardness 44.9 (42.4-46.6) mg/L CaCO3, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, dissolved oxygen 7.4 (4.6-8.8) mg/L; Concentration: 6350 ug/L for 48 hr (95% confidence interval: 5950-6770 ug/L) /98% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) age 31-35 days, weight 116 mg; Conditions: freshwater, flow through, 24.6 deg C, pH 6.9-7.7, hardness 44.9 (42.4-46.6) mg/L CaCO3, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, dissolved oxygen 7.4 (4.6-8.8) mg/L; Concentration: 6080 ug/L for 72 hr (95% confidence interval: 5740-6440 ug/L) /98% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) age 31-35 days, weight 116 mg; Conditions: freshwater, flow through, 24.6 deg C, pH 6.9-7.7, hardness 44.9 (42.4-46.6) mg/L CaCO3, alkalinity 42.9 (39.6-61.4) mg/L CaCO3, dissolved oxygen 7.4 (4.6-8.8) mg/L; Concentration: 6080 ug/L for 96 hr (95% confidence interval: 5740-6440 ug/L) /98% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) age 26-34 days, juvenile; Conditions: freshwater, flow through, 25 deg C, pH 7.8, hardness 45 mg/L CaCO3, alkalinity 42 mg/L CaCO3; Concentration: 6140 ug/L for 96 hr /> or =95% purity/
LC50; Species: Pimephales promelas (Fathead Minnow) age 1-2 months juvenile, weight 0.27 g, length 28 mm; Conditions: freshwater, static, 20 deg C, dissolved oxygen 4.3-8.5 mg/L; Concentration: 1990 ug/L for 96 hr (95% confidence interval: 1300-4010 ug/L)
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) embryo; Conditions: freshwater, flow through, 13.3-14.2 deg C, pH 7.4-8.1, hardness 86.8-116.3 mg/L CaCO3, dissolved oxygen 8.6-10.2 mg/L; Concentration: 120 ug/L for 23 days (95% confidence interval: 100-140 ug/L)
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) larvae; Conditions: freshwater, flow through, 13.3-14.2 deg C, pH 7.4-8.1, hardness 86.8-116.3 mg/L CaCO3, dissolved oxygen 8.6-10.2 mg/L; Concentration: 110 ug/L for 27 days (95% confidence interval: 100-140 ug/L)
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) weight 0.99 g; Conditions: freshwater, renewal; Concentration: 2000 ug/L for 96 hr (95% confidence interval: 1800-2300 ug/L) /100% purity/
LC50; Species: Oncorhynchus mykiss (Rainbow Trout) weight 0.31 g; Conditions: freshwater, static; Concentration: >100000 ug/L for 96 hr /99% purity/
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