You searched for: Author United States. Environmental Protection Agency. Region IX Remove constraint Author: United States. Environmental Protection Agency. Region IX Subject Sulfates Remove constraint Subject: Sulfates Subject Health Remove constraint Subject: Health Subject Organic compounds Remove constraint Subject: Organic compounds Subject Particulate nitrate Remove constraint Subject: Particulate nitrate Subject Air quality management Remove constraint Subject: Air quality management Institution Stanford Remove constraint Institution: Stanford Place California Remove constraint Place: California Data type Polygon Remove constraint Data type: Polygon Year 2011 Remove constraint Year: 2011
2011. United States. Environmental Protection Agency. Region IX. This polygon shapefile shows designated areas for particulate matter < 10 microns according to the 24-Hour National Ambient Air Quality Standard... California. Air Resources Board.