||Water distribution system as a potential source of mutagens in drinking water /
Basu, D. K. ;
Saxena, J. ;
Stoss, F. W. ;
Santodonato, J. ;
Neal, M. W.
||Syracuse Research Corp., NY. Center for Chemical Hazard Assessment.;Health Effects Research Lab., Research Triangle Park, NC.
|| Health Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
||EPA/600/1-84/019; SRC/TR-81/620; EPA-R-806413
Drinking water. ;
Distribution systems ;
Water distribution ;
Potable water ;
Water treatment ;
Water pollution ;
Aromatic polycyclic hydrocarbons ;
Water pollution sampling ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||205 pages ; 28 cm
The primary objective of this study was to examine the changes in concentration of 6 PAHs and the possibility of changes in mutagenic potential of treated waters as a result of leaching during their passage through commonly used distribution pipes in the U.S. With the exception of Wheeling, WV treated water, which showed an unusually high total polycyclic aromatic hydrocarbon concentration of 138.5 ppt, the total polycyclic aromatic hydrocarbon concentration in all other treated water ranged from 0 to 13.4 ppt. The corresponding total polycyclic aromatic hydrocarbon concentration in water after their passage through the distribution pipes varied fro m 0 to 61.6 ppt. This indicates a small increase of polycyclic aromatic hydrocarbon concentration in waters as a result of their passage through the asphalt-lined distribution pipes. Mutagenic activity was also detected in many of the water samples treated, however, the levels of this activity did not correlate with either the transit of water through the distribution system or the levels of polycyclic aromatic hydrocarbon in the water. There was some evidence to indicate that the water treatment process itself may have contributed to the mutagenicity observed in the finished water and that compounds responsible for the observed activity were different from the low molecular weight chlorinated compounds produced during chlorination.
Includes bibliographical references. "EPA-600/1-84-019." Microfiche.