Union of Concerned Scientists

DECEMBER 1, 2022

California’s leadership on reducing truck pollution has been on full display the past few years, passing critical regulations requiring 90 percent reduction in smog-forming nitrogen oxide (NO X ) emissions from diesel trucks and requiring manufacturers sell an increasing share of electric trucks to move away from fossil fuels altogether.

Nitrogen Oxides 246

Nitrogen Oxides Clean Air Act Ozone Fossil Fuels 246

Union of Concerned Scientists

JULY 26, 2022

For example, they may need to choose between cooling down with their windows open at night or breathing polluted air, as residents often don’t have air conditioners or the economic capacity to pay for higher electricity bills. Annual average PM2.5 and ozone concentrations highlighting air quality issues in the Central Valley.

Climate Change 348

Climate Change Ozone Air Pollution Particle Pollution 348

Union of Concerned Scientists

MAY 21, 2025

The report provides renewed evidence of the consequences for our health of using fossil fuels In 1970 the Clean Air Act and the newly formed Environmental Protection Agency (EPA) were given authority by Congress to regulate pollution from passenger cars and other forms of transportation. million more people than in last years report.

Ozone 162

Ozone Ground-Level Ozone Air Pollution Clean Air Act 162