Biocide By-Products in Aquatic Environments

A three-year program has been conducted to study the chemistry and biological effects of products arising from the low-level chlorination of natural waters. These studies are related to environmental concerns arising from the discharge of chlorine-treated power plant cooling water. The studies have shown that addition of low levels (2 mg/l) of chlorine to natural waters produces haloforms in concentrations which are orders of magnitude lower than the LC{sub 50}'s measured in a number of fresh ana salt water organisms. Chlorination also produces nonhaloform lipophilic organohalogen products in concentrations much lower than the naloforms, although no evidence was obtained which suggested significant olomagnification of these during chronic exposure of juvenile salmon to chlorinated fresh water. No dramatic effects were noted in organisms chronically exposed to chlorinated waters, but changes in general condition were observed.

[1]  R. Riley,et al.  Investigation of Halogenated Components Formed from Chlorination of Natural Waters: Preliminary Studies , 1980 .

[2]  C. I. Gibson,et al.  Growth and Histological Effects to Protothaca staminea (Littleneck Clam) of Long-Term Exposure to Chlorinated Sea Water , 1980 .

[3]  R. Riley,et al.  Analysis of Organohalogen Products From Chlorination of Natural Waters Under Simulated Biofouling Control Conditions , 1980 .

[4]  M. Dressler.  Extraction of trace amounts of organic compounds from water with porous organic polymers , 1979 .

[5]  C. I. Gibson,et al.  Toxicity and Effects of Bromoform on Five Marine Species , 1979 .

[6]  William H. Glaze,et al.  Total organic halogen as water quality parameter: adsorption/microcoulometric method , 1977 .

[7]  R. Jolley.  Identification of organic halogen products , 1977 .

[8]  C. Stephan.  Methods for Calculating an LC 50 , 1977 .

[9]  O. Hutzinger,et al.  Uptake of chloro- and bromobiphenyls, hexachloro- and hexabromobenzene by fish , 1976, Bulletin of environmental contamination and toxicology.

[10]  R. Jolley.  Chlorine-containing organic constituents in chlorinated effluents , 1975 .

[11]  J. Fritz,et al.  Resin sorption methods for monitoring selected contaminants in water. [Atrazine, DDE] , 1975 .

[12]  J. Thompson,et al.  Effects of stable chlorine-containing organics on aquatic environments , 1974, Nature.

[13]  J. Rook.  Formation of Haloforms during Chlorination of natural Waters , 1974 .

[14]  G. V. Calder,et al.  Use of macroreticular resins in the analysis of water for trace organic contaminants. , 1974, Journal of chromatography.

[15]  J. Sprague.  The ABC's of Pollutant Bioassay Using Fish , 1973 .

[16]  F. Wilcoxon,et al.  A simplified method of evaluating dose-effect experiments. , 1948, The Journal of pharmacology and experimental therapeutics.