Facility Actual Emissions Data Search
Use the link below to search for actual emissions data from facility point sources. Since Minnesota does not have a rule mandating that point sources report air toxics emissions, the air toxics emission inventory is derived from the Minnesota criteria emission inventory (MCEI). The information in the MCEI that is useful in estimating air toxics emissions includes facility, device, and process identifications; Source Classification Code (SCC) assignments; throughput activity data; control efficiencies; and lead emission estimates. The MPCA requests that facilities voluntarily provide emission information, then evaluate the quality of the data submitted. Also, the quality assured lead emissions in the MCEI were adapted to the air toxics emission inventory to maintain the consistency between these two MPCA inventories.
If directly reported values were not available, an emission factor method was used. An emission factor is defined as a representative value that attempts to relate the quantity of a pollutant released to the atmosphere with an activity associated with the release of that pollutant. Emission factors can be either source-specific or generic. Emission factors from the EPA Factor Information REtrieval (FIRE) Data System were used as generic emission factors. Source-specific emission factors were derived from source-specific emission testing, mass balance, or chemical analysis. Air toxics emissions were calculated by multiplying an emission factor by activity data. The activity data were reported by each facility in the MCEI and thus were source-specific regardless of the type of emission factors.
If neither the directly reported emissions nor emission factor estimated emissions were obtainable, values in the Toxic Release Inventory (TRI) were used, if available. The TRI report is prepared by the Minnesota Department of Public Safety for manufacturing point sources with releases that exceed certain reporting thresholds.
Moreover, data from the National Emission Inventory (NEI) (prepared by the EPA) were evaluated for additional emission estimates. These data were verified and adopted if they were appropriate.
Search the Facility Actual Emissions Data
Search facility actual emissions data on the MPCA Environmental Air Data Access Point Source Search.
Use Google Earth
View point sources along with emissions information for 2005 in the free Google Earth application.
-
Air Emissions - Selected organics (2005) (airemissions__selectedorganics) - Air Emissions - Metals (2005) (airemissions_metals)
-
Download Google Earth 
- Air Toxics Metadata 2005
You have the option to either use a temporary copy of the data or save a copy to your computer for later use.
- To use a temporary copy, click on the data link and click “Open." The file will open in Google Earth.
- To save a copy of the data, click on the data link and select “Save” and save the file to your computer. When the “Download complete” window shows, click “Open.”
