Tiny plastic fragments have been turning up in tap water, bottled water, and even human blood for years. Now the federal government has formally acknowledged them as a potential drinking-water threat.

A sample series from the coagulation experiments show "flocs"—or particles—formed by adding a coagulant in the center, right-center, and rightmost container. PFAS are entrapped in flocs and are ...

A UC Riverside discovery makes it possible to destroy perchlorate pollution after it has been captured on ion-exchange resin ...

In 1945, Grand Rapids, Michigan, made history — as the first city in the world to add small amounts of fluoride to its public water supply. At the time, studies showed communities with higher levels ...

City officials say maintaining consistent fluoride levels is challenging because each of Cheney's wells contains different ...