| 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 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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. |
