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Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

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Scientists around Professor Thomas Münzel, Director of Cardiology I at the Department of Cardiology at the Medical Center Mainz of Johannes Gutenberg University Mainz (JGU), reviewed the mechanisms responsible for vascular damage from air pollution together with scientists from the UK and the US. —Münzel et al.

Pollution 220
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US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

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Now, researchers from Sandia National Laboratory’s Combustion Research Facility, the University of Manchester and the University of Bristol report in a paper in Science the first direct kinetics measurements made of reactions of any gas-phase Criegee intermediate, in this case formaldehyde oxide (CH 2 OO). —Welz et al.

Ozone 268
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Study finds modifying urban form may be a strategy to reduce air pollution

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Based on their findings in a new study, researchers from the University of Washington and the University of Minnesota suggest that modifying urban form—as a means of affecting motor vehicle usage—may be a strategy to mitigate urban air pollution. Their paper appears in the ACS journal Environmental Science & Technology.

Pollution 231
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Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

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Researchers from the University of Minnesota have produced a spatially and temporally explicit life cycle inventory (LCI) of air pollutants from gasoline, ethanol derived from corn grain, and ethanol from corn stover for the contiguous US (the lower 48 states). of all three fuels, but emits more black carbon (15 mg mi ?1

Gasoline 236
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Researchers Determine Process Through Which Hydrocarbon Compounds Emitted by Trees Form Aerosols, With Impact on Human Health and Climate

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Isoprene, a five-carbon diene formed naturally in plants and animals and a precursor of ozone, contributes more than 40% of these emissions. Global simulations show an enormous flux—nearly 100 teragrams of carbon per year—of these epoxides to the atmosphere. Paul Wennberg, Caltech, project leader. Dr Kleindienst.

Climate 150