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Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

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A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al. Platt et al.

Pollution 362
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Air Resources Board seeks nominations for 2014 Haagen-Smit Clean Air Awards

Green Car Congress

The California Air Resources Board is accepting applications for the 2014 Haagen-Smit Clean Air Awards. California’s premier air quality award is named for the late Dr. California’s premier air quality award is named for the late Dr. Arie Haagen-Smit, known as the “father” of air pollution science and control. 2014, and 1 Dec.2014.

2014 231
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Shanghai to spend $1.63B over next 3 years to target air pollution, especially PM2.5

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billion) on 53 projects targeting air pollution, especially for PM2.5 According to the plan, local government will eliminate high-polluting vehicles and control discharges from key industrial plants to reduce PM2.5, Currently, there are over 200,000 high-polluting vehicles on local roads. Shanghai Daily. billion yuan (US$1.63

Pollution 257
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CARB approves updated “At-Berth” regulation, expanding efforts to cut pollution from ships in California ports

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The California Air Resources Board approved a new regulation designed to reduce pollution further from ocean-going vessels while docked at California’s busiest ports. That rule has achieved an 80% reduction in harmful emissions from more than 13,000 vessel visits since 2014.

Pollution 305
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Canadian study finds commuters may be exposed to increased levels of traffic-related pollution

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A study by researchers led by a team from the Air Health Science Division of Health Canada (the Federal department responsible for helping Canadians maintain and improve their health) finds that commuters may be exposed to increased levels of traffic-related air pollution owing to close proximity to traffic-emissions. In-vehicle PM 2.5

Pollution 271
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Cooperative SO2 and NOx aerosol formation in haze pollution

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A study of major haze pollution episodes in China in 2013 by researchers from the State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Chinese Academy of Sciences, shows that the formation of secondary sulfate aerosols from SO 2 increases in the presence of NO x. to reduce the overall PM 2.5

Pollution 231
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Study finds damage due to premature mortality from PM2.5 decreased >20% from 2008 to 2014

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related damages, researchers from Carnegie Mellon University and Stanford have found that, US-economy-wide, gross external damage (GED) due to premature mortality has decreased by more than 20% from 2008 to 2014. Indeed, farms have become the largest contributor to air pollution damages from PM2.5 In a new study of PM 2.5

2008 223