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Tools to help small businesses determine if they need an air emissions permit and/or track compliance with their current air emissions permit.

There are two types of federal air regulations, the National Emission Standards for Hazardous Air Pollutants (NESHAPs) and New Source Performance Standards (NSPSs). Either or both regulations may…

When people think of sources of air pollution, they typically think about buildings with big smokestacks like power plants and factories. Only about a quarter of the air pollution in Minnesota comes…

Recent air permits issued by the MPCA can be found in What's in My Neighborhood. The tool does not currently include all previously issued air emissions permits. All air emissions permits issued by…

Above and beyond: MPCA recognizes this Minneapolis manufacturer for proactively reducing air emissions and carbon footprint

Groundwater is the source of drinking water for about 75% of all Minnesotans and provides almost all of the water used to irrigate crops. Its purity and availability is critical to the health of the state.

Smith Foundry has ceased operations at its East Phillips facility after an investigation and settlement with the U.S. EPA that the MPCA supported.

The kind of permit a facility needs depends on how much air pollution the facility could emit based on its equipment or processes.

Image Although Minnesota is rich in lakes and streams, Lake Superior is easily the most spectacular waterbody in Minnesota. Despite its immense size…

Removing Middle Lake from the impaired waters list required wrangling with a bottom feeder, the invasive carp.

Determine if your facility requires an air permit and, if so, which permit type may be the best fit for your business.

An air emissions risk analysis estimates the potential human health risks from air pollution emitted by a facility.

Learn what steps you can take to reduce the pollution from small neighborhood sources.