Air quality in the U.S. improved from 2021 to 2022, a new report found, with the biggest increases in the West. Pollution lessened in more than 8 out of every 10 cities in the country in 2022, ...

The 10 most polluted major cities in the United States last year all experienced air quality that exceeded World Health Organization guidelines by two-three times, according to an annual report by ...

Early epidemiology studies were concerned with short-term effects associated with daily changes in ambient air quality. However, a 1970 publication attributed differences in long-term survival rates ...

Cambridge, MA—Air pollution data on a neighborhood scale are now available in near real-time from the TEMPO instrument (Tropospheric Emissions: Monitoring of Pollution). The mission gathers hourly ...

Although the provincial government has significantly expanded the air quality monitoring network, the absence of a scientifically grounded comprehensive climate observatory and an updated emissions ...

Most of us now live largely inside, yet we still talk about “fresh air” as if it only exists outdoors. The reality is that ...

Here's what the numbers say about air quality, travel times and more since the controversial tolling plan went into effect.

North Carolina residents are breathing the cleanest air in decades as emissions of harmful pollutants continue a sustained ...