title: The tree BVOC index.
abstract: Urban trees can produce a number of benefits, among them improved air quality. Biogenic volatile organic compounds (BVOCs) emitted by some species are ozone precursors. Modifying future tree planting to favor lower-emitting species can reduce these emissions and aid air management districts in meeting federally mandated emissions reductions for these compounds. Changes in BVOC emissions are calculated as the result of transitioning to a lower-emitting species mix in future planting. A simplified method for calculating the emissions reduction and a Tree BVOC index based on the calculated reduction is described. An example illustrates the use of the index as a tool for implementation and monitoring of a tree program designed to reduce BVOC emissions as a control measure being developed as part of the State Implementation Plan (SIP) for the Sacramento Federal Nonattainment Area.
authors: U.S. Forest Service, Pacific Southwest Research Station, Urban Ecosystems and Processes, 1731 Research Park Drive, Davis, CA 95616, USA. jrsimpson@ucdavis.edu
authors: J R
authors: JR
authors: Simpson
authors: E G
authors: EG
authors: McPherson
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000378:metabolism; D000397:Air Pollution / Q000517:prevention & control / Q000706:statistics & numerical data; D001688:Biological Products / Q000032:analysis* / Q000378:metabolism; D002947:Cities; D016468:Forestry / Q000379:methods*; D006078:Government Programs; D014197:Trees / Q000378:metabolism*; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000378:metabolism
chemical_list: D000393:Air Pollutants; D001688:Biological Products; D055549:Volatile Organic Compounds