2017 Air Pollution Ozone Regulations 
Union of Concerned Scientists
JULY 26, 2022
California’s Central Valley consistently experiences the country’s worst air quality, and climate change is poised to make air quality even worse. In a region known for its exceptional agricultural productivity, climate change is quickly amplifying a dangerous type of climate risk in California’s Central Valley: air pollution.
Law Columbia
JULY 6, 2017
Circuit concluded that EPA had acted arbitrarily and capriciously in determining that the four elements of the regulations that had been stayed met these requirements. Six environmental groups launched the proceeding challenging the stay after EPA published notice of the stay in the June 5, 2017 issue of the Federal Register.
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PA Environment Daily
SEPTEMBER 22, 2022
The study-- Hazardous Air Pollutants In Transmission Pipeline Natural Gas: An Analytic Assessment -- was accepted for publication in Environmental Research Letters journal September 16. This includes new regulations in Pennsylvania. Read more here. Billion Boost To PA Economy, Help Farmers As Senate Committee Meets Sept.
Legal Planet
AUGUST 24, 2023
At the high temperatures in internal combustion engines, some of the nitrogen in the air actually burns, resulting in the formation NO or NO 2 , which are collectively called NOx. NOx plays a role in forming ground level ozone and final particulates (PM2.5), both of which are human health hazards. gpm NOx standard.
Columbia Climate Law
DECEMBER 2, 2019
On Friday, November 22, the Sabin Center submitted comments opposing an Environmental Protection Agency (“EPA”) proposal to rescind regulations limiting methane emissions from new oil and natural gas facilities (the “Methane New Source Performance Standards” or “Methane NSPS”). By Romany Webb.
Environment, Law, and History
DECEMBER 31, 2020
Here’s what EPA has to say on the subject — and remember, this is from the Trump EPA, which is no fan of regulation: Experience with the Clean Air Act since 1970 has shown that protecting public health and building the economy can go hand in hand.
Union of Concerned Scientists
MAY 17, 2023
Earlier this month, the Environmental Protection Agency’s (EPA) Clean Air Scientific Advisory Committee (CASAC) released a draft set of recommendations calling on the EPA to tighten its current standard for ground-level ozone pollution to protect public health. But will the EPA follow CASAC’s recommendations?
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