In this Jan. 15, 2023, file photo, the faucet in Ana Maria Rodriguez's bathroom sink shows signs of corrosion, possibly due to nitrate pollution in Boardman, Ore. A report issued Wednesday shows ...

Increasing levels of nitrate in Ontario’s watersheds including the Grand River is a serious issue for the entire province, says Mayor Kevin Davis. But the mayor is optimistic that solutions can be ...

The U.S. Environmental Protection Agency recently added segments of five rivers near large Iowa cities including Cedar Rapids to the state's impaired waters list for nitrate — over the repeated ...