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U.S. Steel Corp. operates the Minntac Taconite processing facility near the city of Mountain Iron, where it produces taconite pellets that are shipped for use at steel mills. U.S. Steel has applied for a reissued air permit so it can replace existing emissions controls in its pellet plant with cartridge filters.
Air quality map of current conditions in Minnesota.
The Upper Iowa River is a 156-mile-long tributary of the Mississippi River that rises in Mower County in southeastern Minnesota near the Iowa border. It then flows south through three Iowa counties before flowing into the Mississippi. It drains nearly 641,000 acres (1,005 square miles).
The Minnesota Department of Natural Resources (DNR) and Minnesota Pollution Control Agency (MPCA) sample and test fish in bodies of water where known pollution issues may be a concern for human health through fish consumption.
Thirty TMDLs undertaken in the Mississippi River - Twin Cities Watershed to address excess nutrients, turbidity, bacteria, and more.
One of 12 major watersheds of the Minnesota River Basin, the Watonwan River Watershed covers 878 square miles in south-central Minnesota.
Whether they are called sloughs, swamps, bogs, or potholes, these are all wetlands and they provide many environmental benefits and contribute to watershed health. Though Minnesota has lost almost half of its wetland acreage over time, the quality of the remaining wetlands is good overall.
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.
This feature summarizes findings from four WRAPS reports in 2024: Root River, Mississippi River-St. Cloud, Pomme de Terre River, and Mississippi River-Lake Pepin Tributaries.
Volkswagen settlement funds are helping MPCA clean up air pollution and invest in cleaner transportation to support a healthy environment and reduce emissions in Minnesota, especially in communities most impacted by vehicle pollution.
Most AST systems that contain liquid capable of polluting the waters of the state are subject to state rules and permits.
Minnesota is a national leader in ensuring healthy air quality. The Clean Air Act requires states to take significant responsibility for preventing and controlling air pollution. States must pass…
We Are Water next visits Ortonville and the Big Stone Lake area March 15 through April 21.
Rundown of all the PFAS legislative wins from the most recent legislative session.
Minnesota industrial stormwater permittees in certain industries to monitor for PFAS in their stormwater runoff or snow.
Product stewardship encourages manufacturers, retailers, and consumers to treat products as resources rather than waste, changing how they think about the products they make, buy, and use.
Certain proposed projects — based on their nature, size, location, or other factors — must go through an environmental review before any required permits or approvals are issued.
The MPCA sought proposals from qualified responders to conduct an environmental forensics evaluation using non-targeted analysis techniques for identifying sources of non-aqueous film forming foam (non-AFFF) per- and polyfluoroalkyl substances (PFAS) contamination in water.
Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?
Countless bacteria can be found in land, water, humans, and animals. Most bacteria are beneficial, serving as food for larger organisms and playing critical roles in natural processes such as organic…