Chlorination of drinking water and cancer mortality in Taiwan.
Chlorination has been the major strategy for disinfection of drinking water in Taiwan.
An ecologic epidemiological study design was used to examine whether chlorination of drinking water was associated with cancer risks.
A « chlorinating municipality » (CHM) was defined as one in which more than 90% of the municipality population was served by the chlorinated water while an « noncmorinating municipality » (NCHM) was one in which less than 5% of the municipality population was served by chlorinated water.
Age-adjusted mortality rates for cancer during 1982-1991 among the 14 CHMs were compared to rates among the 14 matched NCHMs with similar urbanization level and sociodemographic characteristics.
The results of this study suggest a positive association between consumption of chlorinating drinking water and cancer of the rectum, lung, bladder, and kidney.
Although these findings must be interpreted with caution because of limitations in the ecological study design, their public health significance should not be disregarded because chlorination of water is so widely practiced in Taiwan.
Mots-clés Pascal : Chloration, Eau potable, Traitement eau potable, Taiwan, Asie, Toxicité, Homme, Epidémiologie, Mortalité, Tumeur maligne
Mots-clés Pascal anglais : Chlorination, Drinking water, Drinking water treatment, Taiwan, Asia, Toxicity, Human, Epidemiology, Mortality, Malignant tumor
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0343648
Code Inist : 002B03H. Création : 27/11/1998.