Ozone injury in west coast forests
Subtitle: 6 years of monitoring
By: Sally Campbell, Ron Wanek, and John W. Coulston.
Contributors: Wanek, Ron.; Coulston, John Wesley, 1973-; Pacific Northwest Research Station (Portland, Or.)
Series: General technical report PNW -- GTR-722.; General technical report PNW -- 722.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 2007
Place of publication: Portland, Or
Language: eng
Number of pages: 53
Subjects: Plants -- Effect of ozone on -- California.; Plants -- Effect of ozone on -- Oregon.; Plants -- Effect of ozone on -- Washington (State); Vegetation monitoring -- California.; Vegetation monitoring -- Oregon.; Vegetation monitoring -- Washington (State); Forest health -- California.; Forest health -- Oregon.; Forest health -- Washington (State)
Description: Six years of monitoring for ozone injury by the Pacific Northwest Research Station Forest Inventory and Analysis Program are reported. The methods used to evaluate injury, compute an injury index, and estimate risk are described. Extensive injury was detected on ozone biomonitoring sites for all years in California, with ponderosa and Jeffrey pines, mugwort, skunkbush, and blue elderberry showing injury.  Little or no injury was detected in Oregon and Washington. The relation of observed injury to ambient ozone levels is discussed. The areas with the highest modeled risk of ozone injury are the areas east of Los Angeles, the southern Sierra Nevada, and portions of the central coast.
Notes: "June 2007."

Includes bibliographical references (p. 39-46).

Also available via Internet.