Add Yahoo as a preferred source to see more of our stories on Google. Ryan Kunkle collects water from the Middle River in Warren County to test for nitrates. (Screenshot from video by Zach Sommers for ...

AMES, Iowa — A team of researchers at Iowa State University is developing a new way to test for nitrates in difficult-to-reach areas. The technology includes making use of a drone. The project ...

DES MOINES, Iowa (Iowa Capital Dispatch) - Iowa volunteers concerned with the state’s water quality are beginning a new season of independent testing for nitrates in bodies of water surrounding where ...

Bacon, ham and sausages may be marketed as “nitrite-free” or “no nitrite added”, but the labels can get complicated. Talking Point tests nine of these products and gets dietary advice.