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Study: ozone levels higher across China than in other countries tracking the air pollutant

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In China, people breathe ozone-laden air two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new international study published in Environmental Science & Technology Letters. 2017 for one ozone metric. 2014) are included. 2017 are included.

Ozone 199
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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. Source: University of Leicester. Click to enlarge.

Ozone 255
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International study finds air pollution leads to millions of hospital visits for asthma attacks worldwide

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Air pollution—specifically PM 2.5 , ozone and NO 2 —could be to blame for up to 33 million emergency asthma attack visits to hospital a year, according to a new open-access study published in the journal Environmental Health Perspectives. 37% and 73% of ozone and PM 2.5 37% and 73% of ozone and PM 2.5

Pollution 207
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Emissions of potent GHG HFC-23 have grown, contradicting reports of huge reductions

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Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. As a result, they reported that they had almost completely eliminated HFC-23 emissions by 2017.

Emissions 199
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Air pollution is the leading environmental cause of death worldwide according to the State of Global Air 2018 , the annual report and interactive website published by the Health Effects Institute (HEI). State of Global Air 2018. Population-weighted seasonal average ozone concentrations in 2016. State of Global Air 2018.

Pollution 218
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HALO research aircraft measuring the emissions of megacities in EmeRGe project

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From 10 March to 9 April 2018, the German Aerospace Centre (Deutsches Zentrum fĂĽr Luft- und Raumfahrt; DLR) is conducting research flights from Tainan in Taiwan more closely to examine the spread and transformation of emissions from major cities such as Manila, Taipei, Seoul, Tokyo, Beijing, Shanghai and Guangzhou. HALO in-hangar in Taiwan.

Emissions 268
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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

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NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers. Zhe Jiang, Brian C.

Emissions 150