Remove 2015 Remove Air Pollution Remove Clean Air Act Remove Nitrogen Oxides
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Ask a Scientist: UCS Transportation Program Adds Equitable Mobility to its Portfolio

Union of Concerned Scientists

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. More than 20,000 Americans died prematurely in 2015 from tailpipe emissions, according to a 2019 study.

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Will EPA Follow the Science and Protect Us from Ozone Pollution?

Union of Concerned Scientists

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.

Ozone 197