Union of Concerned Scientists

MAY 21, 2025

Since 2014 CASAC has consistently recommended that the ozone primary standard be lowered from the current standard of 70 parts per billion (ppb) to 60 ppb, but the 2024 EPA rule did not make the standard stricter. Analyzing vehicle pollution control technologies and testing pollution emissions from vehicles.

Ozone 236

Ozone Ground-Level Ozone Air Pollution Clean Air Act 236

Union of Concerned Scientists

SEPTEMBER 26, 2024

Fossil fuel combustion produces carbon dioxide (CO2), the most abundant global warming pollutant, but also produces local pollutants such as fine particulate matter (PM2.5), nitrogen oxides (NOx), carbon monoxide (CO) and volatile organic compounds (VOCs). Bermix Studio/Unsplash PM2.5: have a diameter of 2.5

Ground-Level Ozone 271

Ground-Level Ozone Fossil Fuels Ozone Air Pollution 271

Environmental Science

JULY 30, 2018

In general, environmental data are organized according to media, such as air or groundwater, analytical fraction, such as VOCs, and sampling round, such as 2014 data. Through this law, water pollution is managed by controlling wastewater discharges. Soil data are probably least sensitive to time. Clean Water Act.

Clean Water Act 52

Clean Water Act Waste Clean Air Act Regulations 52