If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

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 ...

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

Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.

Six Mexican nationals have been identified as the victims on board the Learjet 55 aircraft that fell from the sky near Roosevelt Mall last week ...

Coverage of when the Hughes fire exploded north of Castaic, the areas under evacuation orders and an extended red flag ...

The good news today is that the high-powered winds ... including parts of Orange County near the Airport Fire. Air quality experts urged residents to avoid physical activity outdoors; keep windows ...

Green campaigners warn of ‘costly mistake’ on airport expansion that will take decades and drive up greenhouse gases ...

A combination of onshore winds and a high swell contributed to the breach of the National Environmental Standard (NES) for air quality at the industrial area of Awatoto, near Napier. Hawke’s Bay ...

The air quality in Delhi deteriorated significantly and was recorded in the 'very poor' category on Thursday, January 30. The city also witnessed a thin layer of fog in the morning. According to the ...

There are likely no survivors after an American Airlines passenger jet and an Army helicopter crashed midair near Washington ... “It looked to me like a giant Roman candle, sparks shooting ...