As the chart shows, for PM2.5 concentrations up to 60 microgram per cubic metre (µg/m3), AQI increases by 1.67 for every 1µg/m3 increase in PM2.5 concentration.

A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy levels across the region. Latest U.S.

Check real-time air quality in Los Angeles with this interactive map. Get up-to-date AQI readings, pollution levels, and health recommendations for neighborhoods across LA, Orange, San Bernardino ...

New Delhi ranked as the world’s most polluted city on Wednesday morning as residents in the Indian capital woke up to a thick blanket of haze, marking a severe air emergency. The pollution led ...

Seattle's Air Quality Index (AQI) went from good to moderate on Thursday, where it is expected to remain until Monday per IQ Air's forecasts. Moderate air quality, which is anything between 51-100 ...

Air quality in Los Angeles was at "moderate" levels on Thursday morning, as judged by the EPA's Air Quality Index rating system. Moderate air quality is between 51 and 100, or in the yellow band ...

As ranked by IQAir.com, a website that analyzes air quality levels, these are the cities in the US that have the worst air quality as of Tuesday. Milwaukee, Wisconsin- 248 (AQI level) Wilmette ...

India's capital region of Delhi was a "gas chamber" with smog, haze and an Air Quality Index over 600, indicating a severe health risk, in many places on November 4, 2022. CBS/Vijay Bedi ...

As the chart shows, for PM2.5 concentrations up to 60 microgram per cubic metre (µg/m3), AQI increases by 1.67 for every 1µg/m3 increase in PM2.5 concentration.