2017 2023 Air Pollution Ozone 
PA Environment Daily
APRIL 26, 2024
The Department of Environmental Protection published notice in the April 27 PA Bulletin inviting public comments on a proposed declaration of an Exceptional Air Quality Event due to 2023 wildfires from Canada and New Jersey causing elevated levels of nitrogen oxides and volatile organic compounds impacting ozone pollution in Pennsylvania.
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.
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Union of Concerned Scientists
DECEMBER 12, 2023
I got involved after the city filed reports and maps to support its claim that it was fulfilling the requirements of a historic 2017 settlement to find and replace Flint’s lead pipes. But Big Ag pollutes more than water. And that pollution has compounding consequences.
Law Columbia
MARCH 13, 2023
In its legislative findings, which remain in air quality statutes today , Congress justified air pollution regulation because “the growth of the amount and complexity of air pollution brought about by urbanization, industrial development, and the increasing use of motor vehicles, has resulted in mounting dangers to the public health and welfare.”
ESA
JUNE 14, 2021
The Biden administration laid out its timeline for rolling back major Trump environmental rules, but acknowledged that the process of enacting more protective regulations on climate and air pollution and drinking water will take years — if they can estimate the timeline at all. The court determined that the U.S.
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