Energy & environment · 20/07/2010Updated: 10/17/2026 · 1 min read
EPA Approves Michigan's Redesignation of Allegan County Area for Ozone Attainment
The Environmental Protection Agency (EPA) is proposing to approve Michigan's request to redesignate the Allegan County area to attainment for the 1997 8-hour ozone standard, based on three years of air quality monitoring data and the state's plan to maintain the standard through 2021.