Regulation & law · 27/10/2021

Air Plan Approval; Michigan and Wisconsin; Finding of Failure To Attain the 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard for the Detroit and Rhinelander Nonattainment Areas

The Environmental Protection Agency (EPA) is proposing to determine that the Detroit and Rhinelander sulfur dioxide nonattainment areas failed to meet the 2010 primary 1-hour sulfur dioxide national ambient air quality standard by the required deadline of October 4, 2018. The EPA's decision is based on air quality modeling and monitored data from January 2015 to December 2017 for the Rhinelander area.