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Nitrogen Dioxide Levels Rebound in China
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Published May 22, 2020
With most lockdowns ending and economic activity resuming, levels of the air pollutant have returned to near normal for this time of year.
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Unusual Weather Leads to Ozone Low Over the Arctic
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Published April 16, 2020
While such low concentrations of ozone are unusual, they are not unprecedented.
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2019 Ozone Hole is the Smallest on Record
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Published October 22, 2019
Abnormal weather patterns in the upper atmosphere over Antarctica dramatically limited ozone depletion.
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New Map Shows Risk of Sunburn Across the U.S.
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Published August 7, 2019
The Centers for Disease Control and Prevention is using NASA data to help the public better understand their UV exposure.
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Ozone Hole is Big, But Tempered by CFC Reductions
Published November 14, 2018
The hole in the ozone layer over Antarctica was slightly above average size in 2018, but smaller than expected for the weather conditions.
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Pollutant Emissions Leveling Off a Bit in the U.S.
Published May 31, 2018
Satellite data show that nitrogen oxide and carbon monoxide are not declining as much as projected by models.
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