Air Quality Data & Reports
Annual Air Quality
A comprehensive review of air quality for each year, including details for each major pollutant, our monitoring network, visibility studies, and impaired air quality periods.
Monthly Air Quality Summary*
This monthly report describes general meteorological conditions, as well as average and maximum pollutant concentrations in both narrative and graphical form. *Discontinued
Monthly Fine Particulate Data*
This data product displays fine particulate (PM2.5) values collected using EPA approved reference method devices. Spreadsheet files can be opened with the free Excel Spreadsheet Viewer. *Discontinued
Air Quality Data
A wizard interface allows you to query our air quality database and download the data in both XML and CSV formats.
Our interactive wind rose chart displays a quantitative graphical summary of historical wind direction, together with wind speed or a pollutant, for a time span and location that you select.
Air Graphing Tool
The latest generation of our air graphing suite offers improved usability with enhanced functionality and visualization features.