What does AQI stand for and what is it?

AQI stands for Air Quality Index, a numerical scale used to communicate the quality of air in a specific area. It measures the concentration of pollutants such as particulate matter, ozone, carbon monoxide, and sulfur dioxide. The AQI helps the public understand how polluted the air currently is or how polluted it is forecast to become, with values ranging from good to hazardous. Higher AQI values indicate poorer air quality and a greater potential for adverse health effects.