There's Something in the Water

Marc Edwards often goes straight to the source to test the levels of hazardous substances in our water supplies. On April 10, as part of the NSF-Popular Mechanics public webcast Bridges to the Future, he was one of the blue-ribbon panelists taking calls on the state of water coming out of our taps.

An environmental engineering professor at Virginia Tech, and recent recipient of a MacArthur Foundation grant, he has dedicated much of his career to investigating and solving national water quality problems, including the dangerous levels of lead in District of Columbia drinking water.

Credit: Michael Kiernan, Virginia Tech.