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

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 ...

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 ...

Many phone apps offer general but nonspecific information about airborne particles. To help increase public safety amidst the ...

Shemsi Gara operated a giant digger in a Kosovo coal mine, churning up toxic dust that covered his face and got into his ...

Exposure to various air pollutants, such as PM2.5 and nitrogen oxides, increases the risk for several autoimmune diseases, including psoriasis, lupus and rheumatoid arthritis, according to data ...

Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, closed-toed shoes and cut-resistant gloves. Clean or decontaminate anything ...

The air quality index (AQI) in many LA regions looks good, but that doesn't mean the air is safe. Why it matters: The AQI in your weather app doesn't account for all pollutants caused by wildfires.

Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels, provide a rough sense of the ...