
The most air-polluted cities (measured in μg/m³ of PM2.5 concentration):
The most air-polluted cities (measured in μg/m³ of PM2.5 concentration): . Pakistan Lahore, : 97.4 . China Hotan : 94.3 India […]
The most air-polluted cities (measured in μg/m³ of PM2.5 concentration): . Pakistan Lahore, : 97.4 . China Hotan : 94.3 India […]