Business

Invasive Species

Invasive species are plants, animals and pathogens that are "out of place." A species is regarded as invasive if it has been introduced by human action to a location, area or region where it did not previously occur naturally (i.e., is not…

Lower Green Bay and Fox River Area of Concern

Public Review and Comment Opportunity The DNR is seeking public comments on a draft recommendation to remove the "Restrictions on Drinking Water Consumption or Taste and…

Wisconsin's Great Lakes Areas of Concern (AOCs)

St. Louis River Area of Concern

Public Review and Input Opportunity Draft 2024 Remedial Action Plan Update for the St. Louis River Area of Concern The DNR is seeking public feedback on the draft 2024 Remedial Action Plan Update for…

Wisconsin’s Great Waters Annual Photo Contest and Writing Project

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…

Sulfur Dioxide NAAQS Implementation

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…

Air Pollution Control Rules

Wisconsin's State Legislature creates and revises the Wisconsin Statutes

Refrigerant Recovery Program

Wisconsin law prohibits the release of regulated refrigerants into the atmosphere. The release of regulated refrigerants generally occurs as refrigeration and air-conditioning equipment is salvaged or dismantled for disposal. The refrigeration…

Particle Pollution

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…

Air Quality News and Subscriptions

The DNR uses GovDelivery to help us more efficiently manage our communications and offer more subscription options to our customers. To learn more about these subscriptions and to sign up, please click on the "Subscriptions" tab below.Air NewsAir…