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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)…
Streams of the Upper St. Croix Watershed are among the most biologically intact, healthy, and resilient of watersheds in Minnesota.
Composting your Halloween jack-o'-lantern is a good way to keep it out of the landfill. So is giving it to a local farmer.
POET Biorefining-Glenville LLC violated several air permit conditions between 2018 and 2023 at its ethanol production facility in Albert Lea, Minn. The facility emitting more particulate matter and volatile organic compounds than allowed by permit over the course of five years.
A TMDL addressing excess bacteria in 22 stream reaches and protection strategies for 29 stream and river reaches in the Upper Mississippi River watershed.
Image Aboveground storage tank (AST) requirements are found in Minnesota Rules, Chapter 7151. In general:new tanks and piping must be designed to…
Phosphorus management plans help wastewater treatment facility operators and managers evaluate pollution prevention and and management options that can reduce the amount of phosphorus discharged to Minnesota waters.
MPCA had approximately $250,000 available to reduce emissions of volatile organic compounds (VOCs) through the use of stage 1 vapor recovery systems at gasoline-dispensing facilities throughout Minnesota.
Businesses face challenges from climate change's impacts, but they can also take steps to reduce their contributions to climate change.
Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?
The MPCA, Dakota County, and the Minnesota Department of Health will jointly host two community meetings about a recent event at Gopher Resource in Eagan.
An air emissions risk analysis estimates the potential human health risks from air pollution emitted by a facility.
PFAS are persistent and problematic chemicals that are found throughout the environment and not just in areas where large quantities have been manufactured, disposed of, or spilled. PFAS are…
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.
A brownfield assessment is a property investigation looking for potential contamination.
The Minnesota Repair Project is one of several initiatives that received a grant from the Minnesota Pollution Control Agency aimed at reducing waste and boosting reuse across the state.
Researchers collect samples of sediment from the bottom of Lake of the Woods in 2024. (Photo courtesy of St. Croix Watershed Research Station) After years of study…
The Minnesota Pollution Control Agency (MPCA) requests public comment on a rule that will shape nation-leading restrictions on the use of per- and polyfluoroalkyl substances (PFAS).
In karst landscapes, the distinction between groundwater and surface water is blurry.
Salt is commonly over-applied, sending too much chloride into our waterways and wreaking havoc on fish and other wildlife.