For more information about National Park Service air resources,
please visit http://www.nature.nps.gov/air/. Air Quality at
Shenandoah National Park What’s in the Air? Most visitors expect
clean air and good visibility in parks. However, Shenandoah
National Park (NP) in Virginia, experiences some of the highest
measured air pollution of any national park in the U.S. The park
is downwind of many sources of air pollution, including power
plants, factories, vehicles, and agriculture. Industrial
facilities and urban centers throughout the adjacent mid-
Atlantic region and Ohio River Valley contribute significantly
to emissions that affect Shenandoah NP. Air pollutants carried
into the park can harm natural and scenic resources such as
streams, soils, forests, fish and wildlife, and visibility. How
is air pollution affecting Shenandoah National Park? - Elevated
levels of sulfur and nitrogen in air pollution deposit into park
ecosystems causing acidification of high elevation streams and
soils, affecting forest heal