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City of Greensboro The City of Greensboro is installing Diesel Oxidation Catalysts (DOCs) on 20 of their dump trucks. DOCs are devices that use a chemical process to break down pollutants in the exhaust stream into less harmful components. DOCs reduce particulate matter by 20%, hydrocarbons by 50%, and carbon monoxide by 40%. Contact Gary Smith |
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| Clean Transportation at the NC Solar Center is under the College of Engineering at NC State University | |