Thai authorities advised the public on Tuesday to wear face masks and avoid outdoor activities due to high levels of air ...

What we’re really worried about is the PM2.5 levels,” or the fine particles in wildfire smoke, which have a diameter of less ...

Officials are warning of windblown ash and other pollutants from Los Angeles-area fires and say air quality readers won't ...

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Last year, the NASA citizen science community saw a prize from the White House and two prizes from professional societies: one from the Division of Planetary Sciences and one from the American ...