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American Journal of Epidemiology Vol. 116, No. 6: 924-932
Copyright © 1982 by The Johns Hopkins University School of Hygiene and Public Health


research-article

DRINKING WATER AND CANCER INCIDENCE IN IOWA

II. RADIOACTIVITY IN DRINKING WATER

JUDY A. BEAN1,, PETER ISACSON1, ROLF M. A. HAHNE2 and JAMES KOHLER1

1Dept of Preventive Medicine and Environmental Health, U. of Iowa Iowa City, IA 52242
2University Hygienic Laboratories, U. of Iowa Oakdale Campus Iowa City, IA

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Iowa towns of 1000-10,000 population, whose water came solely from wells of over 500 feet (152 meters) in depth and was not treated by a process that would remove radioactivity, were identified. Age-adjusted, sex-specific cancer Incidence rates were determined for these towns for the years 1969–1978 (excluding 1972) and related to the mean level of radium-226 in the municipal water supply. Incidence rates of cancers of the lung and bladder among males and of cancers of the breast and lung among females were higher in towns with a radium-226 level in the water supply exceeding 5.0 pCI/l. A gradient of increasing cancer Incidence associated with rising radioactivity level for three time periods was also seen for lung cancer among males. The associations between cancer Incidence and radioactivity of water supply could not be explained by smoking patterns, water treatment factors, other water quality measurements, or known socio-demographic features.

environmental pollutants; neoplasms; radioactivity; water pollution, radioactive; water supply


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International Journal of ToxicologyHome page
R. D. Thomas
Epidemiology and Toxicology of Volatile Organic Chemical Contaminants in Water Absorbed Through the Skin
International Journal of Toxicology, September 1, 1989; 8(5): 779 - 795.
[Abstract] [PDF]



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