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California ARB study finds commuters’ exposures to air pollution greatly depends on mode of travel; light rail, personal vehicles the lowest

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The mode of travel you take on your daily work commute can make a big difference in your exposure to air pollution, according to a new study by researchers at the California Air Resources Board (ARB). Boxplot of average PM 2.5 , BC, UFP, and LDSA [lung deposited surface area] concentrations for each commute mode.

Pollution 150
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UNICEF: 300M children worldwide breathing air exceeding WHO pollution guidelines by 6x or more

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Almost one in seven of the world’s children, 300 million, live in areas with the most toxic levels of outdoor air pollution—six or more times higher than international guidelines set by the UN’s World Health Organization (WHO)— according to a new UNICEF report. No society can afford to ignore air pollution.

Pollution 150
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Study finds some improved cookstoves may emit more black carbon pollution than traditional mud cookstoves

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In this plot, a red star under the boxes means that the mean values for hardwood and mixed fuel tests are statistically different for that stove technology class (at the 95% confidence level, p. They did the test in real homes as part of Project Surya, which quantifies the impacts of cleaner cooking technologies in a village in India.

Pollution 231
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Opinion: Reinventing fuel-based power for a more secure and resilient grid

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It is argued, therefore, that with this power potential, we can create enough excess in wind and solar power that the statistical likelihood of not having the power supply to match demand is effectively zero. European Environment Agency, 2009. [ Dr Toby Gill, CEO of Intelligent Power Generation. Earlier post.). 2 ] Swart, R.

Grid 332
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Researchers urge Chinese government to encourage bikes, buses and rail over cars and commercial vehicles due to emissions and health concerns

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billion pkm in 2014, according to the National Bureau of Statistics of China—an increase of 72.3%. million tons of coal equivalent (tce), which resulted in serious air pollution. China’s passenger-kilometers (pkm) has risen from 1746.67 billion pkm in 2005 to 3009.74 In China in 2013, The transport sector consumed 348.19

Chinese 150
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ICCT analysis finds real-world vehicle fuel consumption gap in Europe at all-time high of 42%

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This update, jointly prepared by the ICCT and the Netherlands’ Organization for Applied Scientific Research (TNO), describes the increasing real-world efficiency gap using statistical analysis. Manufacturers measure vehicle fuel consumption in a controlled laboratory environment. We analyzed data for more than 1.1 —Peter Mock.

Europe 170
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Measurements of CO2 and CO in China’s Air Indicate Sharply Improved Combustion Efficiency

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The findings, published in the 21 September issue of Atmospheric Chemistry and Physics , are generally consistent with official Chinese government statistics and could bolster their credibility as international negotiations proceed on commitments of China and other nations to combat climate change.

CO2 199