Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.
Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...
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 ...
Southeast Asian cities were among five most polluted in the world on Friday according to air-monitoring organisation IQAir, ...