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Long-term exposure to ambient ozone appears to accelerate arterial conditions that progress into cardiovascular disease and stroke, according to a new University at Buffalo study. The longitudinal study followed nearly 7,000 people aged 45 to 84 from six US regions: Winston-Salem, NorthCarolina; New York City; Baltimore; St.
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.
They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane. Based on their findings, they suggested that emission increases in Southeast, East and South Asia may be most important for the ozone change.
Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.
A new study led by researchers at the University of NorthCarolina at Chapel Hill has found that deaths related to air pollution in the US were nearly halved between 1990 and 2010. and ozone from a 21-year computer simulation of air pollution across the US. Zhang, West and colleagues analyzed concentrations of PM 2.5
Researchers at NorthCarolina State University are developing an ozone-based pre-treatment technique (ozonolysis) to release sugars from the energy grass miscanthus for production into renewable fuels or chemicals with minimal generation of chemical waste streams and degradation of the carbohydrate components.
Centreville and Alabama Aquatic Biodiversity Center (AABC), Alabama; Look Rock, Tennessee; and Research Triangle Park (RTP), NorthCarolina) are involved in the SAS. SOAS objectives include the direct quantification of VOC, ozone and NO x surface fluxes and the reconciliation of differences with “blank-down” emission estimates.
Using biodiesel in construction vehicles offers promising environmental benefits in terms of reduced tailpipe emissions as well as reductions in fuel cycle emissions of selected pollutants, according to a new study by researchers at NorthCarolina State University. ozone, PM) problems may be less pressing.
In 2004, the Centralina region (the Greater Charlotte metro area, which straddles the North CarolinaSouth Carolina border) was designated as a non-attainment area for ozone under the Clean Air Act. And there was 3IHC, held in NorthCarolina, which spurred the creation of a hydrail Ph.D.
The largest systematic study ever conducted of human volunteers exposed to ozone air pollution has found no evidence of effects on the heart in its healthy, older participants, but did find effects on the volunteers’ ability to breathe, even at low ambient levels. Possible pathways by which ozone may cause adverse health effects.
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