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You searched for: Publisher United States. Environmental Protection Agency, Region IX Remove constraint Publisher: United States. Environmental Protection Agency, Region IX Institution Stanford Remove constraint Institution: Stanford Place California Remove constraint Place: California Year 2011 Remove constraint Year: 2011
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1. Annual Particulate Matter (Annual PM-2.5) Non-Attainment Designations in Region 9, 2011

2011. United States. Environmental Protection Agency, Region IX. This polygon shapefile contains designated areas for particulate matter < 2.5 microns, according to the annual National Ambient Air Quality Stan... United States. Environmental Protection Agency, Region IX.