Record Display for the EPA National Library Catalog


Main Title Toxicology of Natural and Man-Made Toxicants in Drinking Water.
Author Bull, R. J. ;
CORP Author Health Effects Research Lab., Cincinnati, OH.
Year Published 1984
Report Number EPA/600/D-84/222;
Stock Number PB84-246255
Additional Subjects Toxicology ; Potable water ; Organic compounds ; Water treatment(Chemicals) ; Hazardous materials ; Byproducts ; Humic acids ; Fulvic acids ; Chlorination ; Disinfection ; Mutagens ; Carcinogens ; Laboratory animals ; Rats ; Natural emissions ; Toxicant substances ; Halomethanes
Library Call Number Additional Info Location Last
NTIS  PB84-246255 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 17p
Drinking Water obtained from surface sources contains a very large variety of organic chemicals. The total organic carbon present in the source water is made up of both natural and man-made chemicals. In most instances natural organic material predominates and is largely made up of humic and fulvic acids. The introduction of chlorine into drinking water results in the formation of a variety of by-products including the trihalomethanes, haloacetonitriles, halogenated aldehyde and halogenated ketone derivatives. Representatives of these classes of chemicals have been shown to be mutagenic and/or carcinogenic. More recent studies have shown that similar chemicals are formed upon direct administration of chlorine solutions to rats. These data suggest that chemical interactions between a group of chemicals that have been generally regarded as safe (the disinfectants) and other chemicals of a low level of intrinsic toxicity (humic acids, stomach contents) produce potentially hazardous products.