Metal uptake and mortality rates are determined for selected body areas of Gammarus pulex under both in-situ stream and laboratory test conditions. Metal equilibrium concentration levels are chieved in soft tissue within 5 to 6 weeks exposure in the field with four-to five-fold increases over background control levels noted for saturation levels in caged organisms at sites subject to sewer discharges. Laboratory bioassays yield short-term LC20 values in the order Pb>Cu>Zn, although there is little difference in metal toxicities over exposure periods of about one week. The controlled toxicity tests demonstrate a substantial short-term toxic enhancement over the in-situ field bioassays.
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Research Article| October 01 1990
The Development of Ecotoxicological Criteria in Urban Catchments
A. D. Bascombe;
D. M. Revitt;
Water Sci Technol (1990) 22 (10-11): 173–179.
A. D. Bascombe, J. B. Ellis, D. M. Revitt, R. B. E. Shutes; The Development of Ecotoxicological Criteria in Urban Catchments. Water Sci Technol 1 October 1990; 22 (10-11): 173–179. doi: https://doi.org/10.2166/wst.1990.0302
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