All of the world's 25 most air polluted cities are located in #India, #Pakistan, and #China.
#Nieuwoudtville in South Africa was recognised as the world’s cleanest city, with an annual average PM2.5 concentration of 1.0 µg/m³. #AirPollution
All of the world's 25 most air polluted cities are located in #India, #Pakistan, and #China.
#Nieuwoudtville in South Africa was recognised as the world’s cleanest city, with an annual average PM2.5 concentration of 1.0 µg/m³. #AirPollution