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22 SUMMARY OF ACUTE TOXICITY 96-h LC50 96-h LC50 Test Stage or Temp 95% CI Test Wt Temp 95% CI organism wt (g) (C) (leg/L) organism (g) (C) (µg/L) Rainbow trout 1.6 13 135 Bluegill 1.3 18 340 Walleye 0.8 18 780 645-943 Goldfish 0.9 18 1,380a 989-1,930 a48-h EC50. Fathead minnow 1.2 18 838a 623-1,000 CROTOXYPHOS Green sunfish 1.1 18 3,510 Chemical Name: Dimethyl cis-1-methyl-2-(1-phenyl= 2,570-4,800 ethoxycarbonyl) vinyl phosphate Bluegill 1.5 18 884 Alternate Names: CAS 7700-17-6, Ciodrin, ENT- 707-1,100 4294 24717 SD , - aTested in hard water, 272 ppm CaCO,. Principal Use: Insecticide Sample Description: Technical material, 80% COUMAPHOS SUMMARY OF ACUTE TOXICITY Chemical Name: 0,0-Diethyl 0-(3-chloro-4-methyl-2- 96-h LC50 oxy(2H)1-benzopyran-7;y1) phosphorothioate Test Stage or Temp 95% CI Alternate Name t l A B 21/199 B i CAS organism wt (g) (C) (µg/L) s: sun , o ay , aym x, 6012-87-9, Co-Ral, ENT-17957, Meldane, Muscatox, G. lacustris M 15 49.0a Rasitox 36.0-67.0 Principal Use: Insecticide Pteronarcys YC2 15 2.2b Sample Description: Technical material 95-97% Cutthroat trout 1.0 12 51.0 , -9 28..00 -91.0 SUMMARY OF ACUTE TOXICITY Rainbow trout 1.0 17 72.4 96-h LC50 60.0 87.4 Test Stage or Temp 95% Cl Fathead minnow 1.0 17 11,900 organism wt (g) (C) (µg/L) 9,830-14,400 Simocephalus 11 15 0.10a Channel catfish 1.1 18 2,600 G. fasciatus M 21 0.074 2,240-3,020 0.059-0.092 Largemouth bass 0.7 18 1,100 Cutthroat trout 0.3 12 862 645-1,150 Bluegill 1.1 17 152 126-183 Rainbow trout 1.2 12 890 a24-h LC50. b72-h LC50. Lake trout 2.1 12 593 416-846 CRYOLITE Channel catfish 1.0 18 840 620-1,140 Chemical Name: Sodium fluoaluminate Largemouth bass 0.9 18 1,100 Alternate Names: CAS 1344-75-8, ENT-24984, 1,000-1,200 Kryocide