2020 Air Pollution Clean Air Act Nitrogen Oxides 
Legal Planet
AUGUST 22, 2023
States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.
Union of Concerned Scientists
MARCH 12, 2024
In 1963, a typical car—which ran on leaded gasoline without pollution control devices— emitted 520 pounds of hydrocarbons, 1,700 pounds of carbon monoxide, and 90 pounds of nitrogen oxide every 10,000 miles traveled. Even so, cars and trucks are still making us sick—and killing us. Transit agencies in Washington, D.C.,
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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).
Union of Concerned Scientists
MAY 17, 2023
Ground-level ozone pollution is a nasty air pollutant that can cause lung problems and asthma attacks. Sadly, the process of setting an outdoor ozone pollution standard has a long history of being undermined by political leaders under the Bush, Obama, and Trump administrations. Here’s how the process is supposed to work.
Vermont Law
APRIL 8, 2022
Juris Doctor Candidate (VLGS '23) and Staff Editor for the Vermont Journal of Environmental Law April 8, 2022 The Environmental Protection Agency (EPA) establishes air quality standards under the Clean Air Act. (1) 27) The human body’s respiratory system is also harmed by Nitrogen oxide exposure. (28)
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