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Effect of organic carbon on the uptake and toxicity of quaternary ammonium compounds to the fathead minnow, Pimephales promelas
Author(s) -
Versteeg Donald J.,
Shorter Shirley J
Publication year - 1992
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620110415
Subject(s) - minnow , pimephales promelas , ammonium , ammonium chloride , chemistry , environmental chemistry , toxicity , chloride , dissolved organic carbon , aquatic toxicology , acute toxicity , total organic carbon , organic chemistry , biology , fishery , fish <actinopterygii>
The effect of dissolved organic, carbon on the uptake and toxicity of quaternary ammonium compounds was investigated with the fathead minnow, Pinephales promelas Aldrich humic acid (HA) reduced the toxicity of dioctadccyl dimethyl ammonium chloride (DODMAC) and monotallow trimethyl ammonium chloride ( C 1c 1g TMAC) but had no effect on the toxicity of tetradecyl trimethyl ammonium chloride (C g TMAC) dodecyl trimethyl ammonium chloride (C 12 , TMAC) or of octyl trimethyl ammonium chloride (C b TMAC) Aldrich HA also reduced the uptake rate constant of DODMAC and C 16 12 TMAC For DODMAC, the reduction in toxicity observed by Aldrich HA was similar to those observed with Suwannee River and Nordic Aquatic HAs and organic carbon from two river waters For C 1c 1g TMAC Suwannee River and Nordic Aquatic HAs and river water organic carbon caused a significant amelioration of toxicity This amchoration of toxicity was quantitatively less than predicted based on Aldrich HA