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Study uncovers role of longer-chain unburned hydrocarbon emissions from diesels in London air pollution; calls for regulatory shift

Green Car Congress

The study found that 60% of the winter primary hydrocarbon hydroxyl radical reactivity in London is from those diesel-related hydrocarbons; the authors predicted that the longer-chain HCs contribute up to 50 % of the ozone production potential in London. Dunmore et al. Dunmore et al. Dunmore et al.

London 150
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HEI launches two new non-tailpipe particulate emission studies

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Assessing the Impact of Non-exhaust Emissions from Traffic on the Asthmatic Airway (IONA) ,” led by Chris Griffiths, Queen Mary University of London. and PM 10 , including of NTP and TP emissions, at key selected London trial sites. Establish a source apportioned time series of PM 2.5

Emissions 353
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HALO research aircraft measuring the emissions of megacities in EmeRGe project

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The transport and transformation of plumes from selected European and Asian major population centers (MPCs) will now be investigated with special focus on the rate of formation of ozone and aerosols. In Asia, in particular, high temperatures, humidity, solar radiation and the frequency of storms play a major role.

Emissions 268
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SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

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The SCOPE (Scientific Committee on Problems of the Environment) International Biofuels Project, has published the full proceedings of its Rapid Assessment workshop on the environmental effects of biofuel technologies, 22-25 September 2008. Rapid assessment on biofuels and environment: overview and key findings. Martinelli, O.