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Author | : United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation |
Publisher | : |
Total Pages | : 610 |
Release | : 1986 |
Genre | : Air |
ISBN | : |
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Author | : United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation |
Publisher | : |
Total Pages | : 0 |
Release | : 1986 |
Genre | : Air |
ISBN | : |
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Author | : Timothy J. Sullivan |
Publisher | : CRC Press |
Total Pages | : 683 |
Release | : 2017-02-03 |
Genre | : Science |
ISBN | : 1498765181 |
Download Air Pollution and Its Impacts on U.S. National Parks Book in PDF, ePub and Kindle
A variety of air pollutants are emitted into the atmosphere from human-caused and natural emissions sources throughout the United States and elsewhere. These contaminants impact sensitive natural resources in wilderness, including the national parks. The system of national parks in the United States is among our greatest assets. This book provides a compilation and synthesis of current scientific understanding regarding the causes and effects of these pollutants within national park lands. It describes pollutant emissions, deposition, and exposures; it identifies the critical (tipping point) loads of pollutant deposition at which adverse impacts are manifested.
Author | : George H. Siehl |
Publisher | : |
Total Pages | : |
Release | : 1985 |
Genre | : Air |
ISBN | : |
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Author | : United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on National Parks and Recreation |
Publisher | : |
Total Pages | : 594 |
Release | : 1986 |
Genre | : Air |
ISBN | : |
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Author | : Timothy Joseph Sullivan |
Publisher | : CRC Press |
Total Pages | : 0 |
Release | : 2017 |
Genre | : Nature |
ISBN | : 9781498765176 |
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15.4.3 Modeling Studies
Author | : |
Publisher | : |
Total Pages | : 104 |
Release | : 1988 |
Genre | : Air quality |
ISBN | : |
Download Air Quality in the National Parks Book in PDF, ePub and Kindle
Author | : Christine Shaver |
Publisher | : Forgotten Books |
Total Pages | : 110 |
Release | : 2017-10-23 |
Genre | : Business & Economics |
ISBN | : 9780265649800 |
Download Air Quality in the National Parks Book in PDF, ePub and Kindle
Excerpt from Air Quality in the National Parks: A Summary of Findings From the National Park Service Air Quality Research and Monitoring Program The purpose of this report is to summarize findings from the nps air quality research and monitoring program based on data collected through 1987. This information helps the National Park Service to remedy and prevent resource degradation so that future generations can enjoy the parks in as natural a condition as possible. Visibility monitoring has shown that. In addition to natural sources of visibility impairment. There are varying degrees of visibility impairment from manmade pollution in virtually all monitored parks. Nps research findings suggest that fine sulfate particles are the single most important contributor to visibility impairment in most nps units. Fine sulfate particles, which can be transported long distances in the atmosphere. Are primarily the result of sulfur oxide emissions from energy and industrial sources. In the Colorado Plateau area. Where Grand Canyon National Park and several other nps units are located, fine sulfate particles are responsible for 40 to 60 percent of the visibility impairment. In eastern areas of the country. Fine sulfates play an even larger role in visibility impairment. In the Pacific Northwest. Sulfates are not the primary cause of visibility impairment; instead. Fine carbon from controlled burning of timber and agricultural land and natural forest fires plays a prominent role. Research on effects of visibility on the visitor experience in five nps units indicates that clean. Clear air is one of the most important features of these parks. It appears that visitors value an environment undisturbed by man above all other features of the parks. Research findings on the effects of changes in visual air quality suggest that a small increase in air pollution is more easily noticed and more disturbing to the human observer when the atmosphere is initially relatively clean. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author | : Robert D. Rowe |
Publisher | : Routledge |
Total Pages | : 335 |
Release | : 2019-03-04 |
Genre | : Political Science |
ISBN | : 0429696930 |
Download Managing Air Quality And Scenic Resources At National Parks And Wilderness Areas Book in PDF, ePub and Kindle
This book is an outcome of the Visual Values Workshop in 1982. It presents the ongoing research on state-of-the-art techniques and applications to address the human perception of changes in visual aesthetic resources and to assign psychological, social, and economic measures of value to visitors.
Author | : John Carter Freemuth |
Publisher | : |
Total Pages | : 208 |
Release | : 1991 |
Genre | : Political Science |
ISBN | : |
Download Islands Under Siege Book in PDF, ePub and Kindle
A study of threats to national parks (noise and water pollution, smog, industrial spills and acid rain) from a political perspective. The focus is on two cases: the proposed mining of the tar sands of south- central Utah, near Canyonlands National Park, and poor air quality in several western parks caused by pollution. Annotation copyrighted by Book News, Inc., Portland, OR