||Acute toxicity of selected toxicants to six species of fish /
Cardwell, Rick D ;
Foreman, Dallas G. ;
Payne, Thomas R. ;
Wilbur., Doris J.
||United States. Environmental Protection Agency. Office of Research and Development.
|| U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; Available through the National Technical Information Service,
||EPA/600/3-76-008; EPA-68-01-0748; EPA-ROAP-16AAE-05
Fishes--Effect of water pollution on. ;
Fishes, Effect of water pollution on ;
Poisons--Physiological effect ;
Arsenic inorganic compounds ;
Sodium inorganic compounds ;
Sodium organic compounds ;
Fresh water fishes ;
Sodium cyanide ;
Selenium oxides ;
Lethal dosage ;
Lead inorganic compounds ;
Water pollution ;
Lead halides ;
Beryllium sulfates ;
Ictalurus punctatus ;
Carassuis auratus ;
Fish mucus ;
Lead chlorides ;
Water pollution effects(Animals)
||Region 3 Library/Philadelphia, PA
||OCSPP Chemical Library/Washington,DC
||Region 4 Library/Atlanta,GA
||NHEERL/GED Library/Gulf Breeze,FL
||Region 5 Library/Chicago,IL
||Region 10 Library/Seattle,WA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||viii, 117 pages : illustrations ; 28 cm.
The relationship between median lethal concentration and exposure time was determined for five chemicals and up to six species of freshwater fish in a flow-through system. The lowest median lethal concentrations found were 0.114 mg/l for sodium cyanide, 0.118 mg/l for sodium pentachlorophenate, 2.9 mg/l for selenium dioxide, 18.0 mg/l for sodium arsenite, 25.4 mg/l for beryllium sulfate, and greater than 100 mg/l for lead chloride. Toxicity curves relating median lethal concentration to exposure time were of three types. One curve, resembling a rectangular hyperbola, characterized the toxicity of sodium cyanide, while another curve, sigmoid in shape, characterized the toxicity of selenium dioxide. Both types of curves were observed in toxicity tests with sodium pentachlorophenate, sodium arsenite and beryllium sulfate. Linear toxicity curves were recorded for some fish species exposed to selenium dioxide, sodium arsenite and beryllium sulfate, but these were usually encountered when exposure times were less than 96 hr.
Report submitted under contract no. 68-01-0748. Includes bibliographical references (pages 63-70).