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WHO Urban Ambient Air Pollution Database 2016


General Info
Coverage type 
Time period covered 
01/2008 - 12/2015
Series or system 
WHO Ambient (Outdoor) Air Pollution Database

This database contains the annual mean concentration of fine particulate matter of less than 10 or 2.5 microns in diameter for 3,000 cities in 103 countries for the period of 2008-2015. Concentration means for cities are based on daily measurements or other data that could be aggregated into annual means. Data come from official national/subnational reports and websites; regional networks like the Asian Clean Air Initiative and Europe's Airbase; and selected publications.