NEW YORK -- If you think something seems off with the air quality today in New York City, you're not wrong. But what's causing it? One possible reason for bad air quality in the city is a fire ...

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): our air quality is fine. Typical air quality in the city falls below 50 ...

The AQI is scaled from 0 to 500. Good air quality is between 0-50, moderate air quality is between 51-100, air quality that’s unhealthy for sensitive groups is between 101-150 and so on ...