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Tree Core Analysis with X-ray Computed Tomography
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The tree BVOC index.

J R Simpson1, E G McPherson

  • 1U.S. Forest Service, Pacific Southwest Research Station, Urban Ecosystems and Processes, 1731 Research Park Drive, Davis, CA 95616, USA. jrsimpson@ucdavis.edu

Environmental Pollution (Barking, Essex : 1987)
|March 26, 2011
PubMed
Summary
This summary is machine-generated.

Planting urban trees that emit fewer biogenic volatile organic compounds (BVOCs) can improve air quality. A new index helps manage BVOC emissions from trees to meet air quality goals.

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Area of Science:

  • Environmental Science
  • Urban Forestry
  • Air Quality Management

Background:

  • Urban trees offer numerous benefits, including improved air quality.
  • Certain tree species emit biogenic volatile organic compounds (BVOCs), which are precursors to ground-level ozone formation.
  • Ozone is a significant air pollutant impacting public health and ecosystems.

Purpose of the Study:

  • To evaluate the potential for reducing BVOC emissions through strategic urban tree selection.
  • To develop a simplified method and index for calculating and monitoring BVOC emission reductions from urban forests.
  • To support air management districts in meeting air quality standards, specifically federal emissions reductions.

Main Methods:

  • Calculated potential BVOC emission changes by simulating a shift to lower-emitting tree species in future urban planting scenarios.
  • Developed a Tree BVOC index based on the calculated emission reductions.
  • Applied the index in an illustrative example for program implementation and monitoring.

Main Results:

  • Transitioning to a lower-emitting species mix can significantly reduce BVOC emissions.
  • The proposed simplified method and Tree BVOC index provide a practical tool for assessing emission control strategies.
  • The index can aid in developing and monitoring urban forestry programs aimed at air quality improvement.

Conclusions:

  • Strategic selection of urban tree species is an effective strategy for managing BVOC emissions.
  • The Tree BVOC index offers a valuable tool for air quality management and State Implementation Plans (SIPs).
  • This approach supports air districts in achieving mandated emissions reductions and improving urban air quality.