For more than four decades, scientists have noticed a mysterious chemical in the treated drinking water of millions of people ...

Scientists find chloronitramide anions form in water treated with chloramines, raising questions about the ions’ toxicity ...

Scientists have identified the byproduct of a chemical used to disinfect tap water and prevent waterborne illnesses.

That byproduct has at last been identified, 40 years after it was first observed, but whether it’s dangerous remains an open ...