|Effects of Pentachlorophenol on Periphyton Communities in Outdoor Experimental Streams.
Yount, J. D. ;
Richter, J. E. ;
|Environmental Research Lab.-Duluth, MN.
Aquatic microbiology ;
Water pollution effects(Plants)
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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.