Powerful new dataset reveals patterns of global ozone pollution

Although ozone pollution is dropping across many parts of the United States, western Europe and Japan, many people living in those countries still experience more than a dozen days every year in which levels of the lung irritant ...

Smoke from wildfires can tip air quality to unhealthy levels

Smoke plumes emanating from wildfires are swept high up into the air and spread over thousands of kilometers even days after a fire has been put out. The fine particles and harmful ozone contained in these plumes often have ...

NASA's TSIS-1 keeps an eye on sun's power over ozone

High in the atmosphere, above weather systems, is a layer of ozone gas. Ozone is Earth's natural sunscreen, absorbing the sun's most harmful ultraviolet radiation and protecting living things below. But ozone is vulnerable ...

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