Wisconsin Department of Natural Resources
Press Release

EPA Recognizes Air Quality In Rhinelander; Entire State Now Meets Latest Sulfur Dioxide Air Quality Standard

 

By - Jan 12th, 2022 03:57 pm

MADISON, Wis. – The Wisconsin Department of Natural Resources (DNR) and the U.S. Environmental Protection Agency (EPA) today announced the Rhinelander area will be formally redesignated to attainment of the most recent federal air quality standard for sulfur dioxide.

Analyses of air monitoring and modeling data show that air concentrations of sulfur dioxide in the area meet the National Ambient Air Quality Standard set to protect human health and the environment. The Rhinelander area also meets all other standards for all air pollutants regulated under the National Ambient Air Quality Standard.

“People in the Rhinelander area are breathing cleaner, healthier air due to EPA’s partnership with the state of Wisconsin,” said EPA Region 5 Administrator Debra Shore. “Reducing sulfur dioxide pollution in the air is especially helpful for vulnerable populations.”

This designation officially recognizes that the air quality in the Rhinelander area is meeting this health-based air quality standard. As a result, the entire state of Wisconsin now meets the latest sulfur dioxide air quality standard.

“Meeting the 2010 sulfur dioxide National Ambient Air Quality Standard has been a complex process involving many areas of the DNR’s Air Management Program, EPA and facilities in Wisconsin,” said Gail Good, the Wisconsin Department of Natural Resources’ Acting Environmental Management Division Administrator.

Sulfur dioxide (SO2) is an air pollutant regulated under both the federal Clean Air Act and Wisconsin state law. The largest source of sulfur dioxide in the atmosphere is the burning of fossil fuels by power plants and other industrial facilities. Exposure to sulfur dioxide can harm the human respiratory system and make breathing difficult. Sulfur dioxide emissions can also damage foliage and crops, form acid rain and increase haze.

Based on monitored air quality data, a portion of Oneida County near Rhinelander was designated as nonattainment of the sulfur dioxide National Ambient Air Quality Standard in 2013. Following this designation, the DNR’s Air Management program worked closely with the Ahlstrom-Munksjö Rhinelander paper mill, the facility primarily responsible for sulfur dioxide emissions in the area, to identify and implement new emissions control measures. As a result of these actions, the monitored sulfur dioxide concentrations decreased by over 75%, and the area’s air quality began meeting the National Ambient Air Quality Standard in 2018.

“This widespread improvement in sulfur dioxide levels across the state is an air quality success story,” Good said. “Emissions of sulfur dioxide from Wisconsin sources are approximately 90% lower than 2002 levels, with most of this decline attributable to the use of cleaner-burning fuels at power plants and industrial facilities, along with the introduction of low-sulfur diesel fuels.”

NOTE: This press release was submitted to Urban Milwaukee and was not written by an Urban Milwaukee writer. While it is believed to be reliable, Urban Milwaukee does not guarantee its accuracy or completeness.

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