PFAS are a family of chemicals accumulating in the soil, rivers, drinking water and the human body. How much exposure to these substances in clothes, firefighting foam and food wrap is too much?
The Colorado seventh-grader was unimpressed by the options her parents had to test water in their home. So she created a sensor-based device using chemically treated carbon nanotubes to do it faster.
A fertilizer company says third-party tests show the water contaminated with low-level radiation has not leaked off the site into nearby wells. Residents are upset they were not informed for weeks.
Flint, Mich., brought the risk of lead pipes to many people's attention, but the problems go further. Find out if lead pipes could be affecting your drinking water.
To show that the water from Flint, Mich., is safe when filtered, the governor says he'll be drinking it for the next 30 days at home and at work. The city has been grappling with lead contamination.
It may be an expensive answer but experts say if Flint, Mich., residents used more tap water, it would help flush lead-contaminated water from the system.
For millions around the world, it's the invisible microbes and parasites that can turn their daily drinking water into a dangerous elixir.