AIR QUALITY ISSUES IN NATIONAL PARKS AND WILDERNESS AREAS. Tonnie Cummings formerly with National Park Service. Class I Areas. Some national parks and wilderness areas have special protection under the Clean Air Act
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National Park Service
Which would you rather see?
Although deposition in the Pacific Northwest is relatively low, some of our mountain lakes have very little buffering capacity:
Acid sensitive: <100 units
Pacific Northwest lakes: <20 units
Everything you do to reduce air pollution in your community can help parks, too!