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10 <br />SUMMARY OF ACUTE TOXICITY <br /> 96-h LC50 <br />Test Stage or Temp 95% CI <br />organism wt (g) (C) (119/L) <br />Simocephalus 11 15 238 <br /> 17-30 <br />Simocephalus I1 21 328 <br /> 22-36 <br />Daphnia pulex 11 15 28a <br /> 20-39 <br />Cypridopsis M 21 18a <br /> 15-21 <br />G. fasciatus M 21 4,300 <br /> 3,500-5,300 <br />Palaemonetes M 21 50 <br /> 38-65 <br />Pteronarcys YC2 15 1.3 <br /> 0.8-2.2 <br />Chinook salmon 0.8 15 14.3 <br />Rainbow trout 0.6 13 2.6 <br /> 2.3-2.9 <br />Fathead minnow 0.6 18 8.2 <br />Black bullhead 1.5 24 19 <br />Channel catfish 5.2 18 53 <br />Bluegill 0.7 18 6.2 <br /> 5.2-7.7 <br />Largemouth bass 2.5 18 5 <br />a48-h EC50. <br />ALLETHRIN <br />Chemical Name: dl-2-Allyl-4-hydroxy-3-methyl-2- <br />cyclopenten-l-one ester of dl cis/trans 2,2-dimethyl- <br />3-(2-methylpropenyl)-cyclopropanecarboxylic acid <br />Alternate Names: Allyl hemolog of cinerin I, CAS- <br />MX8018-12-0, cinerin, cinerolone, ENT-17510, Palle- <br />thrine, Pynamin, Pyresyn, Pyrocide, Synthetic <br />Pyrethrin <br />Principal Use: Insecticide <br />Sample Description: Technical material, 90% <br />SUMMARY OF ACUTE TOXICITY <br /> <br />Test <br />organism <br />Stage or <br />wt (g) <br />Temp <br />(C) 96-h LC50 <br />95% CI <br />(µg/L) <br />Simocephalus I1 15 56.0a <br /> 40.0-78.0 <br />Daphnia pulex I1 15 21.08 <br /> 19.0-35.0 <br />G. fasciatus M 21 11.0 <br /> 8.0-15.0 <br />Pteronarcys YC2 15 5.6 <br /> 4.9-6.4 <br />Rainbow trout 0.9 13 19.0 <br />Bluegill 0.9 24 56.0 <br />a48-h EC50. <br />AMINOCARB <br />Chemical Name: 4-(Dimethylamino)-m-tolyl methyl= <br />carbamate <br />NOTE: Toxicity to fish was not appreciably changed Alternate Names: A-363, Aminocarbe, Bay 44646, <br />by variations in temperature or water hardness. Tem- CAS-2032-59-9, ENT-25784, Matacil, Metacil <br />perature variations from 2 ° to 18 °C gave a 96-h LC50 <br />range of 3.4 to 2.6 µg/L for rainbow trout and a varia- Principal Use: Insecticide <br />tion of 7 ° to 24 °C gave a range of 9.7 to 5.6 µg/L for <br />bluegills. Variations in hardness from 40 to 135 ppm Sample Description: Technical material, 98%1; liquid <br />did not change LC50 values for rainbow trout or formulation, 17%1 <br />bluegills. Invertebrates accumulated significant <br />residues when exposed to C14-labeled aldrin. In SUMMARY OF ACUTE TOXICITY <br />h <br />D <br />ap <br />nia magna, exposure for 3 days to a water con- <br /> <br />centration of 16 ng/L resulted in a 100,000-fold bio- 96-h LC50 <br /> <br />accumulation. Similarly, Hexagenia bilineata and Test Stage or Temp 95% CI <br /> <br />Chironomus sp. accumulated residues of 34,000- and organism wt (g) (C) (µg/L) <br />22,800-fold, respectively, when exposed to concen- G.fasciatus' M 21 12 <br />trations of 21 ng/L. 8.2-18