J. Lay, W. Schauerte, W. Klein
Mar 1, 1984
Citations
0
Influential Citations
18
Citations
Journal
Archives of Environmental Contamination and Toxicology
Abstract
This study was designed to determine the effects of tetrachloroethylene on the phyto- and Zooplankton community at initial concentrations of 1.2 and 0.44 mg/L in separated compartments of an experimental pond. Measurements in the surrounding water were made simultaneously to detect possible effects of compartmentalization. Residues as low as 0.1 mg/L could be analyzed 5 days (low dose) and 38 days (high dose) post application. In all applied biotopes, a lethal effect on the Daphnia population was detected. The phytoplankton community showed an increase of relative abundance and a decrease in species diversity. Studies of the frequency distribution of six selected phytoplankton species demonstrated the total elimination of at least four species from the treated compartments. In spite of different dosing, only weak differences could be found in toxic effects between the low and high dosed compartments. No significant chemical-induced effect was observed on the physico-chemical properties of the treated water.