Record Display for the EPA National Library Catalog


Main Title Acute Toxicity of Nitrite to Rainbow Trout (Salmo gairdneri): Effects of pH, Nitrite Species, and Anion Species.
Author Russo, Rosemary C. ; Thurston, Robert V. ; Emerson, Kenneth ;
CORP Author Montana State Univ., Bozeman. Fisheries Bioassay Lab.;Environmental Research Lab., Duluth, MN.
Year Published 1981
Report Number EPA-R-800861 ;EPA-R-803950; EPA-600/J-81-254;
Stock Number PB81-230856
Additional Subjects Nitrites ; Toxicology ; Fishes ; pH ; Criteria ; Fresh water ; Reprints ; Rainbow trout ; Salmo gairdneri ; Toxic substances ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB81-230856 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
The toxicity of nitrite to rainbow trout is pH-dependent within the range considered acceptable to most freshwater aquatic life (pH 6.5-9.0). Both of the nitrite species, NO2(-) and HNO2, are toxic. It is recommended that nitrite criteria to protect freshwater aquatic life be based on total nitrite, and that such criteria reflect the pH dependence of nitrite toxicity. Variation in the toxicity of nitrite in the presence of chloride, sulfate, phosphate, and nitrate anions has also been demonstrated. It is concluded that the toxicity of nitrite to fishes, in addition to being pH-dependent, is also dependent in varying degrees upon many of the anions that are commonly found in natural aquatic environments.