Green roofs could curb pollution in D.C. waterways

05/15/2014 | WTOP-FM (Washington, D.C.)

Green roofs could prevent nutrients and other pollutants from getting into waterways near Washington, D.C., by absorbing storm water, said Stephen MacAvoy, assistant professor of environmental sciences at American University. These roofs also save on energy, helping the Engine 12 fire station slash yearly energy use by about 5%. Now, MacAvoy and his research students are evaluating the rainwater absorption of engineered-soil green roofs versus foam-based green roofs and will provide the data to the National Fish and Wildlife Foundation.

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WTOP-FM (Washington, D.C.)

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