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Publisher:
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Research Triangle, North Carolina : U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division, Ambient Standards Group, 2014. |
Phys. Desc.:
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1 online resource ([510] pages) : color illustrations, maps
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Digital Content
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Click for online content. |
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Series: | CRS report ; R43851. |
Publisher:
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[Washington, D.C.] : Congressional Research Service, [2018?]- |
Edition:
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[Library of Congress public edition]. |
Phys. Desc.:
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1 online resource.
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Digital Content
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Click for online content. |
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Publisher:
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Research Triangle Park, North Carolina : U.S. Environmental Protection Agency, National Center for Environmental Assessment, Office of Research and Development and Office of Air Quality Planning and Standards, Office of Air and Radiation, 2014. |
Phys. Desc.:
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1 online resource ([92] pages) : color illustrations, map
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Digital Content
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Click for online content. |
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