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Small, inhalable particles called PM2.5 can contribute to diseases and premature death.

A @nasa-funded study found that 2.5 billion city dwellers worldwide live in areas where PM2.5 exceeds @WHO guidelines, leading to 1.8 million deaths in 2019. https://go.nasa.gov/3MeCSg6
#NASAEarth

No Breathing Easy for City Dwellers: Particulates

A new satellite-derived dataset links concentrations of fine particulate matter in air pollution with health outcomes in cities around the world.
go.nasa.gov
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