Seasonal toxicity of ammonia to five fish and nine invertebrate species
Ammonia is a widely distributed chemical found in surface waters. Its toxicity to aquatic life is principally due to the un-ionized (NH3) form. An extensive review on ammonia toxicity to aquatic life has been recently compiled by the US EPA with most information consisting of fish test values and limited data available for aquatic plants and invertebrates. Invertebrates were found to be generally more tolerant to ammonia than were fishes. This laboratory study is part of a larger evaluation in assessing the impact of ammonia nitrogen in outdoor experimental streams at and above derived water quality criteria concentrations. Primary objective for this laboratory study was to determine the relative sensitivity of un-ionized ammonia to fish and invertebrates in river water at ambient seasonal temperatures.
- Research Organization:
- Environmental Protection Agency, Monticello, MN
- OSTI ID:
- 6409866
- Journal Information:
- Bull. Environ. Contam. Toxicol.; (United States), Vol. 38:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMMONIA
TOXICITY
MORTALITY
SEASONAL VARIATIONS
AMBIENT TEMPERATURE
CLAMS
CRUSTACEANS
EXPOSURE CHAMBERS
FISHES
INVERTEBRATES
LARVAE
LETHAL DOSES
SNAILS
TROUT
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
DOSES
HYDRIDES
HYDROGEN COMPOUNDS
MOLLUSCS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
VARIATIONS
VERTEBRATES
560300* - Chemicals Metabolism & Toxicology