On January 12, 2022, the U.S. EPA approved a request by the Wisconsin DNR to redesignate the area around Rhinelander as “attainment” for the 2010 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS). This designation officially recognizes that the air quality in the Rhinelander area is meeting this health-based air quality standard. The EPA’s announcement also means that all of Wisconsin is now meeting the 2010 SO2 NAAQS.

From DNR Air News – for more information, visit https://dnr.wisconsin.gov/topic/AirQuality/News.html