Greater total pollution exposure tied to higher cancer risk

    Living in areas with higher total exposures to harmful pollutants in the air, water and land is associated with greater odds of developing cancer, a U.S. study suggests. While plenty of previous research has linked individual pollutants to increased risks of specific types of cancer, the current study focused on how the combined effect of exposure to a variety of environmental contaminants may influence the risk of tumors. Researchers examined the annual incidence rate for cancer diagnoses for each county in the U.S. and found an average of 451 cases for every 100,000 people. Compared to counties with…
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