2016 Ozone Pollution Control 
Union of Concerned Scientists
JUNE 17, 2025
However, a rapid adoption by three major railroads caused the share of Class I railroad revenue from PSR-utilizing firms to increase from less than 7 percent in 2016 to 70 percent by 2019, where it remains today (privately owned BNSF is the only Class I carrier not yet to adopt PSR).
Union of Concerned Scientists
MARCH 1, 2023
EPA’s own scientists concluded in 2016 that the risk value of ethylene oxide is 60 times more toxic than previously understood. You can compare this to ozone which has a half-life on the order of minutes, and some PFAS chemicals that have a half-life in air on the order of several years.
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Acoel
JUNE 29, 2022
It marks the seventh round of NOx controls for the EGU sector since 1990. 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.
PA Environment Daily
JUNE 3, 2022
An objection to that regulation was raised by the Republicans on the House Environmental Resources and Energy Committee questioning whether the regulation met the requirements of a 2016 law (Act 52) requiring separate regulations for conventional oil and gas operations. Read more here.
PA Environment Daily
JUNE 14, 2022
An objection to that regulation was raised by the Republicans on the House Environmental Resources and Energy Committee questioning whether the regulation met the requirements of a 2016 law (Act 52) requiring separate regulations for conventional oil and gas operations. Read more here. The Preamble to the revised rulemaking says “.
PA Environment Daily
JULY 21, 2022
the Department will develop a separate rulemaking for the RACT requirements for sources of VOC emissions installed at conventional well sites” since the regulations covering oil and gas facilities are being promulgated to attain both the federal 2008 and 2015 ozone standard. The Preamble to the revised rulemaking says “. Read more here.
Union of Concerned Scientists
SEPTEMBER 26, 2024
One good example of the nexus between global warming and local pollution is ground-level ozone. To make matters worse, NOx contributes to the formation of ground-level ozone and secondary PM2.5, Therefore, controlling for NOx and SOx helps reduce PM2.5 which is formed in the atmosphere from precursor gases such as NOx.
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