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UB study finds link between ambient ozone exposure, artery wall thickness

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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. Paul, Minnesota; Chicago; and Los Angeles. The study is unique in its focus on ozone exposure rather than particulate matter. —Meng Wang.

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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).

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Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

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A new study provides the most detailed picture available to date of the global, regional, and local health impacts attributable to emissions from four transportation subsectors: on-road diesel vehicles; other on-road vehicles; shipping; and non-road mobile engines such as agricultural and construction equipment. of global ambient PM 2.5

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Flying first class on a single domestic round trip can contribute more greenhouse gas emissions than a year of driving

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This analysis examined the effect of flight distance on greenhouse gas emissions per passenger, and compared emissions from flying different distances with annual emissions from driving. Greenhouse gas emissions were examined for 17 nonstop flights with round-trip distances ranging from 131 miles to 19,040 miles.

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Embark and HP introduce EV drayage within autonomous truck operations

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The two companies launched an electric truck drayage pilot in the Los Angeles area, where local loads are hauled to and from Embark’s highway-adjacent transfer points using BYD 8TT electric trucks operated by human drivers, while the longer middle segment of the haul is completed autonomously by trucks equipped with the Embark Driver software.

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California ARB approves air quality plan for South Coast Air Basin ahead of 2023 deadline; calls for Federal action

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The California Air Resources Board (CARB) voted to approve an updated plan for the South Coast Air Basin aimed at further cutting smog-forming emissions to attain the federal 8-hour ozone standard. The plan also includes current efforts to transform California’s vehicle fleet to zero-emission. —CARB Chair Mary D.

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Yale study finds asphalt a significant source of air pollution, especially on hot, sunny days

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Asphalt is a near-ubiquitous substance—it’s found in roads, on roofs and in driveways—but its chemical emissions rarely figure into urban air quality management plans. Asphalt’s life cycle and temperature-dependent emissions. (A) Emissions rose markedly with moderate solar exposure (e.g., —Khare et al.

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