Subscribe to receive updates and news about the Great Waters Photo Contest and Writing Project, including when the next calendar is available. Each year, the DNR's Office of Great Waters holds a photo contest and writing project. These…
The U.S. Environmental Protection Agency (EPA) sets National Ambient Air Quality Standards (NAAQS) for criteria pollutants, including sulfur dioxide (SO2). On June 2, 2010, EPA revised the SO2 standard, establishing a one-hour primary standard of 75…
Wisconsin's State Legislature creates and revises the Wisconsin Statutes
Particulate Matter (PM) pollution consists of solid particles or liquid droplets suspended in the air. Fine particles (PM2.5) may be emitted directly into the atmosphere but are more commonly created by reactions of other pollutants, such as…
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The U.S. EPA issues National Emission Standards for Hazardous Air Pollutants (NESHAPs) that are categorized as either MACT or GACT. For general information about NESHAPs, visit our air toxics page.HAP = hazardous air pollutantMACT = maximum…
Air Program organization chart - primary responsibilities for Air Program personnel DNR staff directory - searchable by name, subject or county Contacts by topic Rules, plans and policy Rules and regulations Federal and state standards…
The U.S. Environmental Protection Agency (EPA) has undertaken several rulemakings regulating carbon emissions from power plants under two sections of the Clean Air Act (CAA).
Use the links on this page to access publications and references related to our work with beach pathogen indicators and water quality models, including a list of useful articles and documents dealing with statistical modeling of E. coli and other…
Public health officials use beach advisories and closings to let the public know when the level of pathogens (disease-causing microorganisms) in the water may be unsafe for swimming, water-skiing or other similar water recreation. These advisories…