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RECORD NUMBER: 26 OF 191Main Title | Comparative toxicity of drilling muds : role of chromium and petroleum hydrocarbons / | ||||||||||||||||
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Author | Conklin, P. J. ; Drysdale, D. ; Doughtie, D. G. ; Rao, K. R. ; Kakkareka, J. P. | ||||||||||||||||
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CORP Author | University of West Florida, Pensacola. Dept. of Biology.;Environmental Research Lab., Gulf Breeze, FL. | ||||||||||||||||
Publisher | U.S. Environmental Protection Agency, Environmental Research Lab., | ||||||||||||||||
Year Published | 1980 | ||||||||||||||||
Report Number | EPA-600/J-83-107 ; PB84-116359 | ||||||||||||||||
Stock Number | PB84-116359 | ||||||||||||||||
OCLC Number | 55206203 | ||||||||||||||||
Subjects | Hydrocarbons ; Drilling muds--Environmental aspects ; Offshore oil well drilling--Environmental aspects ; Oil pollution of the sea ; Sheepshead minnow ; Shrimps | ||||||||||||||||
Additional Subjects | Toxicity ; Drilling fluids ; Hydrocarbons ; Comparison ; Crude oil ; Shrimp ; Lethal dosage ; Minnows ; Reprints ; Water pollution effects(Animals) ; Palaemonetes pugio ; Cyprinodon variegatus | ||||||||||||||||
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Collation | 24 p. : ill. ; 28 cm. | ||||||||||||||||
Abstract | Samples of used drilling muds collected during the course of a single well drilling operation exhibited different degrees of acute toxicity to sheepshead minnows and grass shrimp. For moulting grass shrimp, Palaemonetes pugio, the 96-h LC50's were 360 to 14560 ppm (micro 7 litre); many of these values were considerably lower than those reported from previous drilling mud assays. However, when some of the muds in this study were tested on sheepshead minnows, Cyprinodon variegatus, the resulting 96-h LC50 (6300 to 1000000 ppm) were well within the range of previously reported values. |
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Notes | Reprint. Originally published in : Marine Environmental Research 10(2), p. 105-125 (1983) ISSN 0141-1136. "This investigation was supported by Cooperative Agreements Nos. CR-807417 and CR-806776 from the U.S. Environmental Protection Agency." Includes bibliographical references (leaves 33-34.). |
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Contents Notes | Samples of used drilling muds collected during the course of a single well drilling operation exhibited different degrees of acute toxicity to sheepshead minnows and grass shrimp. For moulting grass shrimp, Palaemonetes pugio, the 96-h LC50's were 360 to 14560 ppm(micro 7 litre); many of these values were considerably lower than those reported from previous drilling mud assays. However, when some of the muds in this study were tested on sheepshead minnows, Cyprinodon variegatus, the resulting 96-h LC50 (6300 to 1000000 ppm) were well within the range of previously reported values. |