College experiences differ more within than between colleges, a new survey reports.

Scientists tally the economic toll of fertilizing pollutants on water quality.

Human skin isn't the only thing that makes vitamin D upon exposure to the ultraviolet radiation.

Rusty water and other unusual sources of toxic risks in home drinking water.

Although new standards poised to take effect in a few years will reduce the lead-leaching risk from drinking water faucets, showerheads and many other water dispensers around will remain unregulated.

Featured blog: Users of brand-new buildings on a major university campus were surprised to discover high concentrations of lead in the water. Faucets were the culprit.

Engineers are homing in on germs and other surprises behind the development of tiny holes in home water pipes.

A widely used agricultural weed killer teams up with fertilizer to render frogs especially vulnerable to debilitating parasites. (p. 12)

Turning down the thermostat on a home's water heater could foster the growth of toxic bacteria in home plumbing.

America's ailing water-delivery infrastructure is literally throwing clean water away -- and dirtying some of what it moves toward our taps.