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.

2016 228

2016 Regulations Clean Air Act Ozone 228

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.

Ozone 40

Ozone Clean Air Act 2015 2005 40

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.

Ground-Level Ozone 242

Ground-Level Ozone Fossil Fuels Ozone Air Pollution 242

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.

Regulations 75

Regulations Ozone Pollution Control 2008 75

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 “.

Regulations 52

Regulations Radiation Ozone Pollution Control 52

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.

Radiation 40

Radiation Regulations Ozone Pollution Control 40

Law Columbia

MARCH 13, 2023

The Obama Administration set the first vehicle GHG emissions standards in 2010 for vehicles manufactured in model years 2012 through 2016, and set revised standards in 2012 for model years 2017 through 2025. In many of the states challenging EPA’s emissions regulations, local governments are leading the fight against climate change.

Clean Air Act 59

Clean Air Act Air Pollution Climate Change Regulations 59