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Study explores mechanisms of effects of personal ozone exposure on blood pressure and vascular endothelial function

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A research team in China conducted a longitudinal panel study among 43 non-smoking college students in Shanghai to explore the effects of personal ozone exposure on blood pressure (BP), vascular endothelial function, and the potential molecular mechanisms. —Xia et al. doi: 10.1021/acs.est.8b03044. 8b03044.

Ozone 230
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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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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. The inset shows ozone trends in Beijing (red) and Los Angeles (blue).

Ozone 199
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Study suggests air pollution may be linked to heightened mouth cancer risk; PM2.5 and ozone

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High levels of air pollutants, especially fine particulate matter (PM 2.5 ) and to a lesser extent, ozone, may be linked to a heightened risk of developing mouth cancer, suggests a study by a team of Taiwanese researchers. The number of new cases, and deaths from, mouth cancer is increasing in many parts of the world. on human health.

Ozone 255
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Duke/York study finds long-term exposure to ozone has significant impacts on human health, but lower than prior modeling results

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A team from Duke University in the US and University of York in the UK have utilized a novel method to estimate long-term ozone exposure and previously reported epidemiological results to quantify the health burden from long-term ozone exposure in three major regions of the world. —Karl Seltzer. Karl M Seltzer et al.

Ozone 207
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Study: 2/3 of aviation climate impact due to emissions other than CO2

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In the new study, we have analyzed 20 years of aviation emissions, up until and including 2018. Net warming from NO x emissions is a sum over warming (short-term ozone increase) and cooling (decreases in methane and stratospheric water vapor, and a long-term decrease in ozone) terms. For 2018 the net aviation ERF is +100.9

Climate 448
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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