WHO updated its air quality database to include ground measurements of annual mean concentrations of nitrogen dioxide, as well as measurements of particulate matter with diameters equal to or smaller than 10 m or 2.5 m.
According to the organization, nearly the entire global population breathes unhealthy levels of nitrogen dioxide and fine particulate matter, both of which “originate mainly from human activities related to fossil fuel combustion.”
The announcement was made ahead of World Health Day, which this year celebrates “Our Planet, Our Health.”
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