WIUM Tristates Public Radio

National Cancer Institute

A new report suggests the Environmental Protection Agency should consider lowering the legal limit in drinking water for nitrates, a chemical often connected to fertilizer use.

People who drink water with elevated, but not illegal, levels of nitrates could be at an increased risk of kidney, ovarian and bladder cancer, the nonprofit Environmental Working Group asserts. But a University of Iowa researcher who studies nitrate contamination says the connection to cancer is inconsistent and other chemicals may be involved.