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Federal
Regional Air Quality Data
U.S. Environmental Protection Agency —
This asset provides data on regional air quality, including trace level SO2, nitric acid, ozone, carbon monoxide, and NOy; and particulate sulfate, nitrate, and... -
Federal
Clean Air Status and Trends Network (CASTNET): Visibility
U.S. Environmental Protection Agency —
Nephelometer data (conforms to IMPROVE network standards) from October 1993 to June 2002. This table is no longer updated. -
Federal
Modeling Results for Policy Analyses
U.S. Environmental Protection Agency —
This asset provides information on policy options in abating SO2, NOx and Greenhouse gases. -
Federal
Pollution Control Measures and Equipment
U.S. Environmental Protection Agency —
This asset provides information on all operating and planned-committed electricity generation units (used as primary input for IPM)