Impact of Local Sources During Stagnant Conditions in Shenandoah National Park
Shenandoah National Park (SNP) is located in the eastern United States within the northern portion of the Blue Ridge mountains in Virginia. Large urban areas within a few hundred kilometers (i.e. Washington, D.C.) and large regional sources (i.e. industrial facilities in the Ohio River valley) commonly produce high levels of pollutants which influence visibility at SNP during all seasons of the year with the summertime being considered the worst from the standpoint of visibility degradation. Although some of the larger regional sources have been identified, little emphasis has been given to the influence of local sources within the region. These local sources could possibly contribute substantially to the amount of pollutants observed at SNP especially during stagnant conditions.
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