Contaminants

Our guide to the most common drinking water contaminants. Learn what they are, where they come from, and what health effects they might have.

Lead

The aging water infrastructure leads to more lead in drinking water...

Fluoride

Fluoride can cause a wide-range of health effects both good and bad.

PFOA/PFOS

Chemicals in this class are found in nonstick pans, waterproof jackets, and more.

Pesticides

Chemicals designed to kill pests, including insects, weeds, and fungi.