Air pollution effects studies in Sequoia
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David J. Parsons; H. Thomas Nichols
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Article
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1989
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Springer
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English
β 39 KB
Air pollution is one of the most serious environmental threats facing our national parks. In its role as a protector of natural ecosystems, the National Park Service has a responsibility to document the extent and severity of such external threats. Sequoia and Kings Canyon National Parks, in the sou