You are here:
SITE-SPECIFIC WATER QUALITY STUDIES OF THE STRAIGHT RIVER, MINNESOTA: COMPLEX EFFLUENT TOXICITY, ZINC TOXICITY, AND BIOLOGICAL SURVEY RELATIONSHIPS
Citation:
Carlson, A. AND T. Roush. SITE-SPECIFIC WATER QUALITY STUDIES OF THE STRAIGHT RIVER, MINNESOTA: COMPLEX EFFLUENT TOXICITY, ZINC TOXICITY, AND BIOLOGICAL SURVEY RELATIONSHIPS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-85/005 (NTIS PB85160703), 1985.
Description:
Comparative laboratory toxicity tests using Ceriodaphnia reticulata and the fathead minnow Pimephales promelas were conducted to establish relationships between the toxicity of a sewage treatment plant effluent containing high concentrations of zinc, toxicity of the effluent in the receiving water, toxicity of zinc added to the receiving water and a reference water, and receiving water biota survey data. Water and biota were sampled under summer (3 times), fall (once) and winter (once) conditions over a one year period. The relationships were used in evaluating the protectiveness of a site-specific water quality criterion derived for zinc. A strong correlation between the effluents toxicity to daphnids was established, however, toxicity correlation with adverse impact on river biota could not be established.