At 7 a.m., the air-quality health index for Winnipeg was 10-plus, considered “very high risk.” The scale displayed does not ...

The Chinese capital of Beijing achieved continued progress in air and water quality last year, according to a report ...

How is air quality across the U.S. these days? —Paul Jackson, Washington, DC. Air quality is defined as the degree to whi ...

Dhaka has ranked sixth on the list of cities with the worst air quality with an AQI score of 142 at 9:20am this morning.