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Environmental Protection

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    Lower Green Bay and Fox River Area of Concern

    Public Review and Comment Opportunity Draft Remedial Action Plan Update for the Lower Green Bay & Fox River Area of Concern The DNR is seeking public comments on the draft Remedial Action Plan Update for the Lower Green Bay and Fox River Area…

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    Grants and Funding Opportunities for Great Lakes Projects

    Great Lakes funding opportunities become available through EPA and other federal agencies. You can find many grant opportunities by searching Grants.gov.

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    Nuisance Algae (Cladophora) in Lake Michigan

    For the past few years, large quantities of decaying algae, called Cladophora, have been found along Wisconsin's Lake Michigan shoreline. As the algae and organisms trapped in the algae rot, they generate a pungent septic odor that many people…

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    St. Louis River Area of Concern

    Public Review and Input Opportunity Draft Remedial Action Plan Update for the St. Louis River Area of Concern The DNR is seeking public feedback on the draft Remedial Action Plan update for the St. Louis River Area of Concern. The draft 2023…

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    Wisconsin's Great Waters 2018 Photo Contest and Writing Project

    The Office of Great Waters received more than 200 beautiful photos of Lake Michigan, Lake Superior and the Mississippi River for the 2018 photo contest. Winning photographs were featured in the 2018-2019 "Wisconsin's Great Waters" calendar, which…

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    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…

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    Wisconsin's Air Quality Trends

    There is a statewide network of 30 ozone monitoring sites and 18 fine particle (PM2.5) monitoring sites to measure ambient air quality in Wisconsin. In addition, the DNR monitoring network measures sulfur dioxide, nitrogen dioxide,…

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    Air Toxics and Mercury

    Air toxics, also called hazardous air pollutants (HAPs), are substances either known or suspected to cause cancer or other serious health problems, including damage to the immune, neurological, reproductive and respiratory systems. These pollutants…

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    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…

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