Air pollution and its impacts on U.S. national parks by Timothy J. Sullivan

By Timothy J. Sullivan

A number of air toxins are emitted into the ambience from human-caused and average emissions resources during the usa and in different places. those contaminants impression delicate common assets in desolate tract, together with the nationwide parks. The method of nationwide parks within the usa is between our best resources. This booklet presents a compilation and synthesis of present medical knowing in regards to the explanations and results of those pollution inside nationwide park lands. It describes pollutant emissions, deposition, and exposures; it identifies the severe (tipping aspect) a great deal of pollutant deposition at which antagonistic affects are manifested.

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1 Average Changes in S and N Deposition between 2001 and 2011 across Park Grid Cells at GRSM........................................................................................ 2 Plant Species That Are Widely Recognized as Ozone-Sensitive or Bioindicator (Asterisk) Plant Species and That Are Known or Thought to Occur in GRSM ................................................................................... 3 Ozone Assessment Results for GRSM Based on Estimated Average 3-Month W126 and SUM06 Ozone Exposure Indices for the Period 2005–2009 and Kohut’s (2007a) Ozone Risk Ranking for the Period 1995–1999 ..................................................................................................................

The shaded relief base map was provided by ESRI © 2009. Maps and figures were prepared by Deian Moore and Todd McDonnell. Jayne Charles prepared and assisted with editing the document. This book would not have been possible without the sustained and substantial assistance of Ellen, Jayne, and Deian. Robert Kohut edited sections on the effects of ozone on park vegetation. Photographs were mostly provided by the National Park Service. Helpful suggestions that contributed to book organization and content were provided by Ellen Porter, Tamara Blett, and Tonnie Cummings.

These ecosystem services (services provided by nature to benefit humans) that we care about, and others, are threatened in multiple ways by various air pollutants. The effects are especially noteworthy in the national parks. A variety of air pollutants are emitted into the atmosphere from human-caused and natural emissions sources throughout the United States and elsewhere. These materials are transported with prevailing winds and impact sensitive natural resources in wilderness and other natural areas, including national parks.

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