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Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?

Keep It Clean focuses on the growing problem of garbage and human waste left on the ice by anglers and other visitors during ice fishing season.

Details on Minnesota state contracts with businesses that provide environmental emergency response services.

Dairy will pay a fine and take corrective steps for improperly discharging industrial waste into a city curb and gutter stormwater system in Nicollet County.

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.

MPCA guidance on petroleum site investigation and remediation, reporting, and more.

The Minnesota State Implementation Plan (SIP) is focused on the six criteria air pollutants regulated by national ambient air quality standards (NAAQS): ground-level ozone, fine particles, lead, nitrogen dioxide, carbon monoxide, and sulfur dioxide.

Environmental information and resources for the biochar industry.

Climate adaptation is about developing strategies to help human and natural systems become more resilient to the effects of climate change.

Recyclers of CED must register with the MPCA; there is no annual fee. Recyclers must meet certain requirements in terms of regulatory compliance, necessary licensure, and insurance.

We Are Water MN travels to Chisago County, where Dawn White has served as an educator and policy team member focused on preserving waters.

Cleaner water is taking hold across Minnesota this Earth Day as farmers and communities scale up solutions that protect rivers, strengthen soil, and build resilience from headwaters to downstream lakes.

Minnesota is the first state government in U.S. to use this combination of innovative technologies to address "forever chemicals”

The We Are Water MN exhibit at Art in Motion on the Lake Wobegon Trail in Holdingford runs from April 25 through June 17.

The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.

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)…

Each year, Minnesotans throw away more than 850,000 tons of recyclables, worth around $153 million. Here's how we're reducing those numbers in Greater Minnesota.

Partner with an award-winning exhibition to engage Minnesotans with environmental ideas, challenges, and inspiration for a better future.

MPCA investigators say West Fraser paid a fine of $15,775 for air permit violations at their facility in Solway.

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