These links provide access to a variety of data that may be useful to Western States and Tribes for assessing air quality in Federal Class I areas.
These links provide access to a variety of tools that may be useful to Western States and Tribes for assessing air quality in Federal Class I areas.
Analyze haze in Class I areas by the IMPROVE RHR2 and Impairment metrics...
Visibility, ozone, wet and dry deposition trends in Class I areas by the RHR2 metric...
View comparisons between monitored and modeled air quality parameters...
Download raw monitoring data by choosing sites, dates, parameters, and more...
Determine which sources might require Reasonable Progress controls...