Effects of Pentachlorophenol on Periphyton Communities in Outdoor Experimental Streams

摘要

The objectives of the study were to determine the effects of pentachlorophenol (PCP) on the periphyton community in outdoor experimental streams. It was part of a larger study in which an objective was to evaluate the effects of PCP at water quality criterion levels on natural aquatic communities. Measures of periphyton biomass including ash-free dry weight and phytopigments indicated a linear dose-response relationship with PCP between the criterion level (48 microgram/L) and 432 microgram/L. Slight effects were evident at the criterion level.