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Energy & environment · 30/07/2024Updated: 10/16/2026 · 1 min read

EPA Reclassifies Philadelphia-Wilmington-Atlantic City Ozone Nonattainment Area to Serious

Summary

The Environmental Protection Agency (EPA) has reclassified the Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE ozone nonattainment area from Moderate to Serious under the Clean Air Act, following a request from Pennsylvania and its neighboring states.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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Energy & environment · 5/29/2026

Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards

The Environmental Protection Agency (EPA) is proposing to determine that the Detroit, Michigan nonattainment area attained the 2015 ozone National Ambient Air Quality Standards by the applicable attainment date, relying on an exceptional events request submitted by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) on February 19, 2026.

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Energy & environment · 5/29/2026

Propylene Oxide; Pesticide Tolerances

The US Environmental Protection Agency (EPA) has established tolerances for residues of propylene oxide in various crops, following a petition from ABERCO, Inc., a Balchem Company.

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Energy & environment · 5/29/2026

EPA Approves Negative Declarations for District of Columbia Air Quality Plans

The Environmental Protection Agency (EPA) has approved negative declarations submitted by the District of Columbia Department of Energy and Environment (DCDOEE) on July 19, 2024, and August 28, 2024, certifying no large municipal waste combustors, crude oil and natural gas facilities, or electric utility generating units subject to the Clean Air Act within the District of Columbia.

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