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United States. Environmental Protection Agency. Region IX
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Subject
Air quality management
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Subject
Environment
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Subject
Health
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Institution
Stanford
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Year
2011
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1. Carbon Monoxide (CO): Federal Non-Attainment Area Designations: U.S. Region 9, 2011
2011. United States. Environmental Protection Agency. Region IX. This polygon shapefile represents nonattainment areas for carbon monoxide (CO) in EPA Region 9, including California, Nevada and Arizona, for 2011.... United States. Environmental Protection Agency. Region IX.
2. Lead (Pb): Federal Area Designations: California, 2011
2011. United States. Environmental Protection Agency. This polygon shapefile contains area designations of lead attainment (Pb) in California (Region 9). There are three categories of designations: : n... United States. Environmental Protection Agency. Region IX.