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

Here’s what to know. The Air Quality Index is a tool used by the Environmental Protection Agency (EPA) in order to communicate outdoor air quality. It’s a scale of 0 to 500, with the higher ...

The EPA collects data for the AQI from some 4,000 air quality monitoring stations dotted around the country. But air quality can vary on a hyperlocal scale, meaning the network of official sites is ...

Dr Sneha Tirpude, pulmonologist at Pune's Ruby Hall Clinic, suggests simple measures to protect your lungs when the air ...

This measurement shows what the current nearby air quality is like. However, reading and interpreting AQI is a bit of a guessing game. The AQI scale ranges from 0 to 500 and includes different ...

Moderate air quality is between 51 and 100, or in the yellow band of the AQI scale. Air quality in the moderate range can still be risky for people who are unusually sensitive to air pollution.

President Joe Biden signed a federal emergency declaration. The AQI measures air quality on a scale from 0 to 500, with readings below 50 considered "Good" and above 300 classified as "Hazardous ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.

All implementing agencies have been requested to maintain strict vigilance and intensify steps of the extant schedule of GRAP ...