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. This happens in the AQI range of ...

As the country continues to battle deadly smog and high levels of air pollution, Karachi's air quality index (AQI) fluctuated in and out of the 'very unhealthy' range, while Lahore — once again ...

Punjab capital Lahore witnessed a slight improvement in the smog levels after its air quality index moved out of the hazardous range on Sunday, pushing the megapolis to the second spot on the ...

Wildfires in Canadian provinces of Manitoba, Alberta, Ontario and Saskatchewan are creating smoke visible in Michigan. Here's what to know.

Canadian wildfire smoke lingers over the Greater Lansing area on June 6. The entire Lower Peninsula is under an air quality advisory.

Knowing how to read the EPA's Air Quality Index can help you understand whether smoke from numerous Canadian wildfires makes it hazardous to breathe outside air.

Learn more about the air quality index, along with expert recommendations for staying safe in potentially hazardous air quality conditions.

Two days after Diwali, the air quality index (AQI) of most places in Haryana improved slightly on Saturday but was still under the “very poor” or “poor” category. An AQI between zero and ...

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. This happens in the AQI range of ...