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
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!