Journal of
Toxicology and Environmental Health Sciences

  • Abbreviation: J. Toxicol. Environ. Health Sci.
  • Language: English
  • ISSN: 2006-9820
  • DOI: 10.5897/JTEHS
  • Start Year: 2009
  • Published Articles: 208

Full Length Research Paper

Undesirable effects of drinking water chlorination by-products

Benouareth Djamel Eddine
  • Benouareth Djamel Eddine
  • Department of Biology, Research laboratory, Biology, Water and Ecology, University of 8 Mai 1945, Guelma, Algeria
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Khallef Messaouda
  • Khallef Messaouda
  • Department of Biology, Research laboratory, Biology, Water and Ecology, University of 8 Mai 1945, Guelma, Algeria
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Merabet Rym
  • Merabet Rym
  • Department of Biology, Research laboratory, Biology, Water and Ecology, University of 8 Mai 1945, Guelma, Algeria
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  •  Accepted: 15 January 2014
  •  Published: 28 February 2014

Abstract

The fundamental objective of water treatment is the protection of consumers from pathogenic microorganisms. Chlorination of drinking water is essential to prevent waterborne disease. However, chlorine reacts with organic matter present in surface waters to form various by-products suspected of being carcinogenic. In the last decade, several epidemiological studies have been conducted to determine the connection between exposure to these chlorination by-products and human health defects. The purpose of this paper is to evaluate the genotoxicity of drinking water of Annaba city. The study have been carried out in different points of water distribution and in the station of treatment, using two tests of determination of genotoxic risk by means of SOS chromotest (using the strain Escherichia coli PQ37). SOS chromotest showed genotoxic effect of the sample collected from the exit of treatment station.

Key words: Drinking water, genotoxicity, SOS chromotest, Escherichia coli PQ37.