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Understanding small-scale differences in air pollution is important for minimizing exposure to harmful air pollutants, particularly for vulnerable communities.

The MPCA studies Minnesota's solid waste composition and processes to inform policy recommendations, legislative proposals, education and outreach messages, and waste reduction efforts.

MPCA is opening the rule that regulates about 17,000 animal feedlots.

Minnesota participates in this statistical survey of the condition of our nation's lakes, ponds, and reservoirs.

The Zumbro River Watershed covers more than 900,000 acres and reaches parts of six counties in southeast Minnesota (Olmsted, Dodge, Steele, Rice, Goodhue, and Wabasha). Rochester, one of Minnesota's largest cities, is located in the southeast quadrant of the watershed.

The MPCA is authorized to develop numeric water quality criteria that apply specifically to a water body or region where the pollutant is found, using data from that water body or region.

One of the most basic forms of air pollution, haze reduces visibility in many cities and scenic areas within the United States. Haze-causing pollutants come from a variety of sources, both natural and man-made, including motor vehicles, electricity generation, industrial facilities, agriculture, and wildfires.

Minnesota’s air currently meets all federal air quality standards. However, even levels of air pollution below the standards can affect people’s health, including levels currently found in parts of Minnesota.

MPCA sought proposals from qualified responders for a contract conducting a waste characterization study evaluating the types of materials generated and discarded in Minnesota and their relative prominence in Minnesota’s waste streams.

The MPCA is committed to delivering a pollution reduction program that benefits all Minnesotans and works diligently to incorporate their ideas and opinions into our projects and plans. To develop…

MPCA sought proposals from qualified environmental contractors for a contract to support the agency's Watershed Division on statewide, basin-wide, water body, and watershed scale projects.

Question and answer session with Addison Otto, a rule coordinator with the MPCA, about her work with the agency and how her hobby farm informs her work.

The MPCA provides climate change technical assistance to Minnesotan, including one-on-one consultation or small group facilitation, to assess current capacity, build on strengths, and address underlying needs.

Properly trained and certified SSTS personnel are critical. What work duties can local program staff do before becoming certified, and how can that process be expedited?

Answers to common questions about the Construction Stormwater Permit application

St. Paul Brass manufactures brass, bronze, and aluminum castings in the Frogtown neighborhood of Saint Paul, an environmental justice area.

The Mississippi River - La Crescent Watershed drains 95 square miles in Houston and southeast Winona counties, an area defined by wooded bluffs and spring-fed cold-water streams that flow directly to the Mississippi River.

Every two years, MPCA creates a list of impaired waters in the state that do not meet water quality standards.

First of a series of MPCA staff profiles. Kevin Stroom conducts research on streams and has published a report about Straight River.

Mercury is a naturally occurring element that is toxic to humans and animals. At room temperature, mercury is a silvery, liquid metal, but it can also evaporate and become airborne. Mercury does not…