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625626 
Technical Report 
EPA Report 
Ambient water quality criteria for acenaphthene 
U.S. Environmental Protection Agency :: U.S. EPA 
1980 
U.S. Environmental Protection Agency 
Cincinnati, OH 
EPA 440/5-80-015 
The available data for acenaphthene indicate that acute toxicity to
freshwater aquatic life occurs at concentrations as low as 1,700 ug/l and would occur at lower concentrations among species that are more sensitive than those tested. No data are available concerning the chronic toxicity of acenaphthene to sensitive freshwater aquatic animals but toxicity to freshwater algae occur at concentrations as low as 520 ug/l.