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Integrated studies of tree effects on air pollution reveal that management of urban tree canopy cover could be a viable strategy to improve air quality and help meet clean air standards

David J. Nowak, Daniel E. Crane, and Jack C. Stevens

Nowak, D.J., Crane, D.E., and Stevens, J.C. (2006). Air pollution removal by urban trees and shrubs in the United States. Urban Forestry and Urban Greening, 4, p. 115-123.

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