WHO issues new, lower Global Air Quality Guidelines for classical pollutants
Green Car Congress
SEPTEMBER 25, 2021
For that reason, and after a systematic review of the accumulated evidence, WHO has adjusted almost all the AQGs levels downwards, warning that exceeding the new air quality guideline levels is associated with significant risks to health. When action is taken on these classical pollutants—particulate matter (PM), ozone (O?),
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