Environmental Data Access — Air Quality Data
Additional Information
The air quality section of the EDA system allows visitors to access air monitoring and emissions data using the following searches:
- Point sources of pollution
- Emissions by county
- Information on specific pollutants
- Ambient Air Monitoring Data
- EPA AirData — Online access to ambient air monitoring data collected across the United States including visualization tools, maps and downloadable data summaries and daily results.
- Please contact Kellie Gavin with requests for additional ambient air monitoring data.
- Ambient Air Monitoring Network Plan: This report provides specific information on each of the MPCA’s existing and proposed air quality monitoring sites as well as data for several pollutants, summarized to show current conditions relative to State and Federal air quality standards. Also covered are the location of individual sites, monitoring objectives, and proposed changes.
Overview of Search Tools
The five links above take users to text-based or map-based search and display tools. The text-based search tools allow users to enter one or more criteria to narrow their search results.
The tools for ambient monitoring stations, point sources of pollution and geographic location also have links to map-based search tools that allow users to find the same information using an interactive map.
The tool for viewing air emissions by county including area and mobile data allows users to view a state map with the county's color shaded with amounts of a selected a pollutant. Users may select and view county data. Tables at the bottom of each page display source categories and user may expand the tables to view sub-categories of pollutant sources.
For the best results when using the map-based tools, your computer should:
- Be using Internet Explorer 5.0 or later
- Have the screen resolution set at 1024 by 768 pixels
- Have pop-up blockers turned off
The search tool for information on specific pollutants allows users to learn about the properties and sources of chemicals and compounds that are monitored in the ambient air or emitted from facilities.
Downloading Data
Data from monitoring stations in Minnesota is available for download, on a station-by-station basis, by clicking on the appropriate link at the bottom of the station pages. Use the map-based search or text-based search to find a station, scroll down to find the "download station data" button located on the left side of the screen.
Minnesota point source emissions data is also available for download, on a facility-by-facility basis. Use the map-based search or text-based search to find a permitted facility, scroll down to find the "download station data" button located on the left side of the screen.
Monitoring or point source data can be downloaded in either a spreadsheet or comma-separated value format. Additional information about monitoring data is available on the EDA Help page.
