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Study associates long-term exposure to air pollution with increasing emphysema

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Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. The annual averages of ozone levels in study areas were between about 10 and 25 ppb.

Pollution 223
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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. This would have been a big win for climate. —co-author Dr Matt Rigby.

Emissions 199
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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 für 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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Tohoku team finds swirling ammonia in combustion chambers can help reduce NO emissions

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Researchers at Tohoku University in Japan have identified a way to reduce harmful NO emissions produced by ammonia fuel during combustion. Nitric oxide is known to be harmful to human health, contributes to ozone depletion, and when it reacts with other compounds, contributes to acid rain and atmospheric warming.

Emissions 308