Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

The attack came as South Korea’s military said North Korea is preparing to send more troops to join Russia ’s fight against ...

As government sensors fall short, people are buying their own to protect against particulate pollution linked to heart and lung disease, cancer and a higher overall risk of premature death.

One possible reason for bad air quality in the city is a fire that broke out yesterday afternoon in Lancaster, Pennsylvania, where air quality is notably unhealthy. Why would a fire more than 150 ...

Air pollution in the Thai capital forced the closure of more than 350 schools on Friday, city authorities said, as Bangkok ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

So called “blockers” to major transport projects will be cleared in a move that looks set to curb challenges to Heathrow and Gatwick Airport expansions, the Government has announced.

Erin Davis/Axios Visuals Air quality is worsening in the Upper Midwest and Northern California, according to year-over-year data. Why it matters: Poor air quality can lead to long-term health problems ...

Air pollution in the Thai capital forced the closure of more than 350 schools on Friday, city authorities said, as Bangkok ...

The attack came as South Korea’s military said North Korea is preparing to send more troops to join Russia’s fight against Ukraine, despite Pyongyang suffering a high rate of losses among its existing ...