[Nitrates in the drinking water and cancer mortality. An epidemiologic study in northern France].
This epidemiological survey was conducted in the Northern country of France, on 753 communes. Nitrate concentration in drinking water was measured from 1974 to 1976. The mean concentration rates (M.C.R.) calculated for the three years, were under 95 mg/l, and 93% were under 43 mg/l. The association between the M.R.C. and digestive and urinary cancer mortality rates observed in the same area (1968-1975) was studied, using different statistical techniques. No systematic relationship was observed taking into account the site of the tumor and the age and the sex of the subjects. The role of other variables is considered in the discussion: duration of exposure, use of other beverages such alcohol or mineral water. The duration of exposure, use of other beverages such alcohol or mineral water. The authors conclude that drinking water does not seem to play a determinant role in the causation of cancer; relationship, if it exists, it remains to be demonstrated.
D000328:Adult; D000368:Aged; D004067:Digestive System Neoplasms / Q000139:chemically induced / Q000401:mortality; D005260:Female; D005602:France; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000139:chemically induced / Q000401:mortality*; D009566:Nitrates / Q000009:adverse effects / Q000032:analysis*; D012306:Risk; D014571:Urologic Neoplasms / Q000139:chemically induced / Q000401:mortality; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000009:adverse effects / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
D009566:Nitrates; D014873:Water Pollutants; D014874:Water Pollutants, Chemical
Nitrates dans l'eau de boisson et mortalité par cancer. Etude épidémiologique dans le nord de la France.