Air Pollution Clean Air Act Environmental Science 
Environmental Science
SEPTEMBER 7, 2018
Useful Environmental Law Terms. Abatement : The process of reducing the quantity, intensity, or saturation of a pollutant or other harmful substance by way of treatment. Often subject to specific environmental protections, especially when “endangered” (see above). Indoor air is anything contained with a building.
Union of Concerned Scientists
MARCH 14, 2023
Among the commenters was my colleague Sam Wilson , who passionately and effectively called on the EPA to follow the science and enact the strongest air pollution standards to protect people’s health. pollution, half of the deaths are attributable to the burning of fossil fuels. EPA’s PM 2.5 This is frankly ridiculous.
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Environmental Science
JULY 30, 2018
Non-scientists and imprecise scientists use a more layman concentration unit of “parts per million” which tells you nothing about the sample type and can be interpreted incorrectly for air samples. For concentration, use the metric system of mass per unit volume or mass per unit mass if you want a job from me in environmental science.
Legal Planet
DECEMBER 27, 2022
Last week, EPA finalized its new rule imposing emission limits on new heavy trucks. The new regulation was clearly a massive undertaking. EPA’s formal announcement of the new rule is 1100 pages long. The accompanying summary of comments on the proposed rule and EPA’s responses is another 2000 pages.
Legal Planet
MARCH 17, 2025
Understanding the Endangerment Finding Two requirements must be met before a substance can be regulated under the Clean Air Act. First, it has to qualify as an air pollutant. The Clean Air Act defines an air pollutant to be any air pollution agent or combination of such agents, including any precursor chemicals.
Union of Concerned Scientists
DECEMBER 12, 2023
The Cuyahoga fire, along with a major oil spill off the coast of Santa Barbara that same year, galvanized national attention and led to the first Earth Day, a slew of new air and water protection laws, and the creation of new federal departments to administer them, including the Environmental Protection Agency (EPA).
Legal Planet
APRIL 15, 2025
Meanwhile, EPA has posted a roster of nearly 50 coal-fired power plants that took the administrations offer on the Email us for a free pass on compliance with the Clean Air Act. If youre new here, welcome to The Drain, a weekly news roundup of climate and environmental headlines. Deep breath.
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