Energy & environment · 10/03/1994Updated: 10/15/2026 · 1 min read
Designation of Areas for Air Quality Planning Purposes; State of Iowa
Summary
The US Environmental Protection Agency (EPA) redesignates part of Muscatine County, Iowa, from attainment to nonattainment for sulfur dioxide (SO2), requiring the state of Iowa to submit an implementation plan within 18 months.