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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.

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FCA recalls 850,000+ gasoline vehicles due to problem with catalytic converters

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Fiat-Chrysler of America (FCA) will recall more than 850,000 gasoline-powered passenger cars and SUVs due to a problem with their catalytic converters. The recall was announced after an investigation by the California Air Resources Board (CARB) and the US Environmental Protection Agency (EPA).

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KIT study finds extraordinarily cold Arctic stratospheric winter enhanced ozone degradation above the Arctic

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Extraordinarily cold temperatures in the stratosphere during the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far, according to a study by climate researchers at KIT (Karlsruhe Institute of Technology). These chemical conversion products attack the ozone layer and destroy it partly.

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6PPD-quinone derived from tire debris is toxic to two trout species, not just coho salmon

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6PPD is an antioxidant and antiozonant that helps prevent the degradation and cracking of rubber compounds caused by exposure to oxygen, ozone and temperature fluctuation. Rubber tires are fortified with protectants, such as N-(1,3-dimethylbutyl)- N' -phenyl-p-phenylenediamine or simply 6PPD.

Ozone 370
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NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

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A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere. The same ozone-loss processes occur each winter in the Arctic.

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Toyota Central R&D Labs develops new ferrihydrite material that effectively removes ozone from air

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(Japan) report in the journal Angewandte Chemie the development of a mesoporous two-line ferrihydrite (2LFh)—ferrihydrite is a widespread mineral composed of iron, oxygen, and water—that could lead to a new generation of ozone filters in electrostatic devices and aircraft applications. removal; it showed about 95 % O 3.

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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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The California Air Resources Board released GHG emissions data for 2018 showing that emissions remain below 1990 levels but are effectively flat compared to 2017, while the economy grew by 4.3%. Source: California Air Resources Board (ARB). Total statewide 2018 GHG emissions were 425.3 million metric tons, compared to 424.5

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