2021 Clean Air Act Ozone 
Acoel
JUNE 29, 2022
The downwind air quality benefits are minimal. The proposed rule would provide de minimus air quality benefits in downwind areas with extremely high costs – estimated by EPA at $22 billion discounted 2016 dollars for the 2023-2042 period. enjoyed ozone reductions of 3 to 5 ppb or more. ppb by 2025. EPA estimated that: .
Clean Energy Law
NOVEMBER 25, 2019
The South Coast Air Basin includes portions of Los Angeles, Riverside, and San Bernardino counties and all of Orange County, covering 6,745 square miles. The SCAQMD is the local agency responsible for attaining these clean air standards in the Basin.
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Vorys Law
JANUARY 26, 2021
On January 20, 2021, the Ohio EPA’s Division of Air Pollution Control (DAPC) hosted a “Program Advisory Group” (PAG) meeting via Microsoft Teams to inform interested stakeholders of recent and upcoming DAPC activities. This post focuses on Ohio EPA’s anticipated regulatory changes to address non-attainment of the 2015 Ozone NAAQS.
Vorys Law
MAY 20, 2021
Ohio EPA has proposed rules that will require additional Volatile Organic Compound (VOC) and Nitrogen Oxide (NOx) emission controls for certain manufacturing and industrial operations located in the Cincinnati and Cleveland 2015 ozone nonattainment areas. Like VOCs, NOx is a precursor compound which can form ozone.
PA Environment Daily
NOVEMBER 5, 2021
The Program became effective May 11, 2002, and provided the necessary 2 year lead time to manufacturers as required under the federal Clean Air Act. Posted: November 5, 2021] PA Environment Digest The Program's emission standards first applied to MY 2005 HDD vehicles and engines.
Union of Concerned Scientists
MAY 21, 2025
It presents air pollution data at the county-level for two pollutants, deadly fine particulate matter (PM 2.5 ) and ground-level ozone. is emitted directly from the tailpipes of gasoline and diesel vehicles, while ozone and even more PM 2.5 and ozone pollution 1. standards for assessing exposure (explained below).
PA Environment Daily
NOVEMBER 11, 2022
The updates, which supplement proposed standards EPA released in November 2021, reflect input and feedback from a broad range of stakeholders and nearly half a million public comments. These include known cancer-causing toxics like benzene, VOCs that increase ozone levels, and methane.
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