“WHO has adjusted almost all the air quality guideline levels downwards, warning that exceeding the new … levels is associated with significant risks to health. The accumulated evidence is sufficient to justify actions to reduce population exposure to key air pollutants, not only in particular countries or regions but on a global scale... Every year, exposure to air pollution is estimated to cause seven million premature deaths and result in the loss of millions more healthy years of life.”
22 Sep 2021
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