Record Display for the EPA National Library Catalog

RECORD NUMBER: 21 OF 30

OLS Field Name OLS Field Data
Main Title Seasonal Toxicity of Ammonia to Five Fish and Nine Invertebrate Species.
Author Arthur, J. W. ; West, C. W. ; Allen, K. N. ; Hedtke, S. F. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1987
Report Number EPA/600/J-87/038;
Stock Number PB87-203329
Additional Subjects Ammonia ; Aquatic animals ; Toxicity ; Seasonal variations ; Sensitivity ; Stream pollution ; Fishes ; Invertebrates ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB87-203329 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 10p
Abstract
The effects of ammonia toxicity were determined for 14 aquatic species (5 fish and 9 invertebrates) in short-term laboratory tests. Forty-five tests were conducted and individual 96-h values (48-h for cladocera) ranged from 0.26 to 22.8 mg/1 NH3. The most sensitive fish and invertebrate species tested with ammonia were the rainbow trout and fingernail clam with geometric mean LC50 values of 0.53 and 1.10 mg/1 NH3, respectively. The most tolerant organisms were caddisfly and crayfish species. Differences in toxicity to ammonia among the fish species was a factor of four and a factor of 17 times for the tested invertebrate species. The short-term tests did not demonstrate a relationship between unionized ammonia (NH3) toxicity and test temperature.