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Global study links daily exposure to ozone pollution to increased risk of death

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Daily exposure to ground level ozone in cities worldwide is associated with an increased risk of death, according to the largest study of its kind, published in an open-access paper in The BMJ. Ground level ozone is a highly reactive gas commonly found in urban and suburban environments, formed when pollutants react in sunlight.

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Study finds COVID-19 lockdown in China brought only slight reduction in PM2.5 and ozone

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Large improvements of air quality in China during the lockdown have been widely reported, but new research shows that two pollutants harmful to human health—fine particulate matter (PM 2.5 ) and ozone—were only slightly reduced. and ozone were only slightly reduced or barely affected.

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NASA funds groundbreaking research on ozone pollution

Innovation News Network

University of Oklahoma professor Chenghao Wang has received three years of funding through NASA to study the rising issue of ozone pollution. The post NASA funds groundbreaking research on ozone pollution appeared first on Innovation News Network.

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CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

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The open-access paper is published in Nature Communications Earth & Environment. Hydrogen is not a greenhouse gas, but its chemical reactions in the atmosphere affect greenhouse gases such as methane, ozone, and stratospheric water vapor. Commun Earth Environ 4, 203 doi: 10.1038/s43247-023-00857-8 Skeie, R.B., Sandstad, M.

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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

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Study finds rising emissions of ozone-depleting CFC-11, banned by Montreal Protocol

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Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an international treaty that required an end to its production in 2010, a new study by researchers at NOAA and their colleagues shows. —NOAA scientist Stephen Montzka, lead author of the paper.

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University of Cambridge designs new method to measure ozone depletion

Innovation News Network

Researchers at the Universities of Cambridge and Leeds have developed an innovative new method for measuring ozone layer depletion. The post University of Cambridge designs new method to measure ozone depletion appeared first on Innovation News Network.

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