Add Yahoo as a preferred source to see more of our stories on Google. The Raccoon River weaves past downtown Des Moines, Iowa The Raccoon River weaves past downtown Des Moines, Iowa, in June 2025..

DES MOINES, Iowa (AP) — Local officials warned more than half a million Iowans in the state’s capital city and suburbs on Thursday that near-record level of pollutants in its rivers could make ...

Nitrate concentrations, exacerbated by a wet spring that followed years of dry conditions, reached near record highs in Iowa rivers this summer. Sign up for our Newsletters Concentrations are ...

Vegetable-derived nitrates may support brain health, while animal and water sources show a contrasting dementia risk pattern.

Nitrate concentrations, exacerbated by a wet spring that followed years of dry conditions, reached near record highs in Iowa rivers this summer. Concentrations are typically elevated in the summer.

New research from Edith Cowan University (ECU) and the Danish Cancer Research Institute (DCRI) investigated the association ...

Nitrate levels in central Iowa rivers are unusually high for January, prompting early water treatment and raising concerns ...

Dec. 13—Some Centralia area residents living in the Fords Prairie neighborhood near Centralia High School and the banks of the Chehalis River are now questioning whether it's safe to drink the water ...

Leafy greens, processed meat, and tap water can deliver the same nitrate, but a Danish study found very different dementia ...