VIDEO: NASA Uses Hart-Miller Island to Test Air Pollution

Hart-Miller Island, built from dredged muck near Baltimore, is NASA's surprising new choice for a place to study air pollution. The provocative theory: that the Bay itself may be recirculating and reproducing pollutants.

Bay Bulletin's Cheryl Costello takes a ride out to the island where researchers are trying to get answers about the ozone and the Bay. 

Megan Viviano