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. https://www.engineeringnews.co.za/article/less-than-1-of-earth-has-safe-levels-of-air-pollution-study-finds-2023-03-07