Page-2 of PM 2.5
IQAir AirVisual 2018 World Air Quality Report
The IQAir AirVisual 2018 World Air Quality Report was compiled by Greenpeace in association with IQAir AirVisual. The index measures the presence of fine particulate matter PM2.5 in the air. Findings of the Report Seven of the top 10 most polluted ..