Top 30: Cities With the Worst Air Pollution
The database on ambient (outdoor) air pollution – the largest of its kind – covers 1600 cities and 91 countries, and indicates where air pollution levels and the related health risks are higher. The aim of this database is not to rank cities or countries but to reflect the monitoring efforts undertaken in those countries. World Health Organization (WHO) has brought together this information on ambient air pollution collected by cities worldwide in order to …
