WHO data: global annual PM10 increased by 6% during recent 3-year period; based on data from 851 cities
Green Car Congress
MAY 8, 2014
population weighted comparisons in annual mean PM 10 for a three?year About half of the urban population being monitored is exposed to air pollution that is at least 2.5 year comparisons do not necessarily represent trends, in particular when changes are limited. Source: WHO. Click to enlarge.
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