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Air quality alert due to wildfire smoke continues through Monday, July 14, for northern Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for northern Minnesota. The alert runs until 6 p.m. on Monday, July 14. Air quality is expected to reach the red AQI category, which is unhealthy for everyone.

Air quality alert issued due to ozone for Monday, May 12, for western and central Minnesota

Image Air quality is expected to reach the orange AQI category in western and central Minnesota, which is unhealthy for sensitive groups.The Minnesota…

Air quality alert issued due to wildfire smoke until Monday, July 14, for all of Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota. The alert takes runs until 9 a.m. on Monday, July 14. Air quality is expected to reach the purple AQI category in northernMinnesota, which is very unhealthy for everyone.

Regional haze data

The Regional Haze Rule requires states to improve visibility in our nation's national parks and wildernesses (Class I areas) and restore them to natural visibility conditions by 2064.

Air quality alert continues due to wildfire smoke for Thursday, June 12, for central and southern Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for central and southern Minnesota. The alert runs until 11 p.m. on Thursday, June 12. Air quality is expected to reach the orange AQI category in central and southern Minnesota, which is unhealthy for sensitive groups.

Air quality alert due to wildfire smoke extended through 7 p.m. Wednesday, Aug. 6, for northeast Minnesota

The Minnesota Pollution Control Agency (MPCA) has extended an air quality alert in the orange AQI category for northeast Minnesota through 7 p.m. on Wednesday, Aug. 6.

Air quality alert continues through Monday, July 21, for parts of northern and central Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for east central, north central, northwest, and northeast Minnesota. The alert takes effect 1 p.m. on Saturday, July 19, and runs until 9 a.m. on Monday, July 21. Air quality is expected to reach the red AQI category, which is unhealthy for everyone.

Air quality alert issued due to wildfire smoke until Thursday, Aug. 15 for northeast Minnesota

Air quality is expected to reach the orange AQI category in northeast Minnesota, which is unhealthy for sensitive groups.The Minnesota Pollution Control Agency (MPCA…

Air quality alert issued due to wildfire smoke for Wednesday, Sept. 4, through Thursday, Sept. 5, for northwestern Minnesota

Image Air quality is expected to reach the orange AQI category in northwestern Minnesota, which is unhealthy for sensitive groups.The Minnesota…

Climate-smart food systems grants to fight hunger and climate change at the same time

MPCA’s work on the climate-smart food systems grant from the EPA is ongoing amid strong interest

Climate Action Framework update builds on past successes, calls for accelerating climate action

The 2026 Climate Action Framework prioritizes reducing greenhouse gas emissions and protecting Minnesotans

Air quality alert due to wildfire smoke extended through Tuesday, July 15, for northern Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for northern Minnesota. The alert runs until 11 p.m. on Tuesday, July 15. Air quality is expected to reach the red AQI category, which is unhealthy for everyone.

MPCA, Gov. Walz announce $200 million to cut climate pollution

EPA awards Minnesota $200 million in Climate Pollution Reduction Grants

Compliance and enforcement

Environmental rules and regulations are essential tools used to protect Minnesota’s environment, setting standards for environmental quality and limits on pollutants that can be discharged from facilities. The MPCA helps protect our environment by writing and enforcing these rules and regulations.

Air quality alert issued due to wildfire smoke for Friday, July 11, for northwest and north central Minnesota

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for northwest and north central Minnesota. The alert takes effect 6 a.m. on Friday, July 11, and runs until 6 p.m. on Friday, July 11. Air quality is expected to reach the purple AQI category in northwest Minnesota, which is very unhealthy for everyone.

MPCA GreenCorps seeking applicants to build resiliency and improve communities around Minnesota

Apply for the 2025-2026 Minnesota GreenCorps program and spend a year working on environmental issues and making a difference in communities around the state.

Step 6: Meet requirements

Industrial stormwater steps to compliance Step 6: Meet requirements

State experts forecast 2025 summer air quality: outlook highlights ozone, drought, wildfire smoke, and new guidance

As Minnesotans prepare for another summer of outdoor activities, MPCA meteorologists are forecasting a moderately active air quality season.

Fine particles

Particulate matter (PM) refers to various air particles, including dust, soot, smoke, and liquid droplets that range in size from less than 0.1 microns in diameter (smaller than a single bacterium)…

Portions of air quality alert due to wildfire smoke through Friday, July 25, canceled for western and southern Minnesota

The Minnesota Pollution Control Agency (MPCA) has canceled portions of the current air quality alert for western and southern Minnesota. The alert runs until 11 p.m. on Friday, July 25. Fine particle levels are expected to reach the red air quality index (AQI) category, a level considered unhealthy for everyone, in east central Minnesota, and the orange AQI category, a level considered unhealthy for sensitive groups, across the remainder of the alert area.