|Air Quality Assessment in the Columbia River
of existing and potential impacts to vegetation, aquatics, and visibility
within the Columbia River basin due to air pollution was conducted
as part of the Interior Columbia Basin Ecosystem Management Project.
This assessment examined the current situation and potential trends
due to pollutants such as ammonium, nitrogen oxides, sulfur oxides,
particulates, carbon, and ozone. Ecosystems and resources at risk
are identified, including certain forests, lichens, cryptogamic crusts,
high-elevation lakes and streams, arid lands, and class I areas. Current
monitoring data are summarized and air pollution sources identified.
The assessment also includes a summary of data gaps and suggestions
for future research and monitoring related to air pollution and its
effects on resources in the interior Columbia River basin.
Schoettle, Anna W.; Tonnessen, Kathy; Turk, John; Vimont, John;
Amundson, Robert (authors); Acheson, Ann; Peterson, Janice (tech.eds).
1999. An assessment the effects of human-caused air pollution on
resources within the interior Columbia River basin. Gen. Tech. Rep.
PNW-GTR-447. Portland, OR: U.S. Department of Agriculture, Forest
Service, Pacific Northwest Research Station. 66 p. (Quigley, Thomas
M., ed.; Interior Columbia Ecosystem Management Project: scientific