Shenandoah National Park Air Quality

Air quality is fundamentally important to the preservation of natural and cultural resources and values. Shenandoah is located downwind from and near major industrial and urban areas. Monitoring and research projects confirm that human-caused air pollution has impaired the park's air quality, visibility, stream-water chemistry, soils, native fish and vegetation.

Air pollution, particularly during the summer season, has significantly degraded the distance, color, contrast and landscape details of park views from Skyline Drive, the Appalachian Trail, and high points in the park. Acid deposition has adversely impacted the acid-sensitive blacknose dace and acid-tolerant Appalachian brook trout at the individual, population and community levels. Despite improvements in air quality under the Clean Air Act, the park's visibility and most sensitive aquatic systems are still degraded relative to estimated natural or pre-industrial background conditions. In addition, the park does not currently meet ground-level ozone standards set by the U.S. Environmental Protection Agency to protect public health and welfare. The park registers some of the highest ground-level ozone measurements recorded at all national parks. Foliar injury caused by ground-level ozone has impaired the aesthetics of many of the park's 40 known ozone-sensitive plant species. Scientists are also concerned about potential ground-level effects on forest growth and the health of several species.

The National Park Service is committed to upholding its affirmative resource stewardship responsibilities under the Clean Air Act through continuation of a strong monitoring and research program, and through resource-efficient regional planning. The Service is also involved in educational efforts, implementation of environmental leadership activities, and providing review and comment on proposed new or modified sources of air pollution.

$249.95
While we typically eschew wet days on the trail, the rise of bikepacking, 3in tires, and fat bikes have given us more...
Price subject to change | Available through Backcountry.com
Featured Park
Rising above a scene rich with extraordinary wildlife, pristine lakes, and alpine terrain, the Teton Range stands monument to the people who fought to protect it. These are mountains of the imagination. Mountains that led to the creation of Grand Teton National Park where you can explore over two hundred miles of trails, float the Snake River or enjoy the serenity of this remarkable place.
Featured Wildlife
The pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.