F. Gersich, M. Mayes
Jul 1, 1986
Citations
0
Influential Citations
14
Citations
Journal
Water Research
Abstract
The purpose of this study was to determine the static acute toxicity of aniline, p-chloro-m-cresol and 2(2,4,5-trichlorophenoxy) propionic acid (silvex) to daphnids (Daphnia magna) and bis(2-chloroethoxy)methane and 2-sec-butyl-4,6-dinitrophenol (dinoseb) to both daphnids and fathead minnows (Pimephales promelas). These data were needed to fulfill requirements established in the NPDES Permit (National Pollutant Discharge Elimination System) issued to the Michigan Division of The Dow Chemical Co. (Midland, Mich., U.S.A.) by the State of Michigan. Where appropriate, water quality-based effluent limitations could be recommended based on the acute toxicity data generated during this study. The results of the acute toxicity tests indicated that bis(2-chloroethoxy)methane was practically non-toxic to both daphnids and fathead minnows (LC50 values of 201 and 184 mg l−1, respectively); additionally, silvex was also found to be practically non-toxic to daphnids (LC50 value > 140 mg l−1). Aniline was highly toxic and p-chloro-m-cresol moderately toxic to daphnids, with calculated LC50 values of 0.17 and 2.0 mg l−1, respectively. Dinoseb was highly toxic both to daphnids and fathead minnows, with reported LC50 values of 0.24 and 0.17 mg l−1, respectively.