Researchers at the National Institutes of Health have found that mice exposed to low doses of arsenic in drinking water, similar to what some people might consume, developed lung cancer.
Arsenic levels in public drinking water cannot exceed 10 parts per billion (ppb), which is the standard set by the U.S. Environmental Protection Agency. However, there are no established standards for private wells, from which millions of people get their drinking water.
In this study, the concentrations ...
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