Less Than 1% of Earth Has Safe Levels of Air Pollution, Study Finds
Briefly

It's no secret that air pollution is a serious problem facing the world today.Just how serious?A new study on global daily levels of air pollution shows that hardly anywhere on Earth is safe from unhealthy air.About 99.82% of the global land area is exposed to levels of particulate matter 2.5 (PM2.5)
Read at time.com
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