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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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The results are indicative of the extent to which policy measures could be undertaken in order to mitigate the impact of specific emissions from different sectors—in particular black carbon emissions from road transportation and sulfur dioxide emissions from power generation. —Caiazzo et al. Fabio Caiazzo, Akshay Ashok, Ian A.

MIT 378
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Audi takes aggressive stance with diesel in the US; four new models and new 3.0L diesel engine; challenge to policymakers

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In his press presentation at the Los Angeles Auto Show, Scott Keogh, the president of Audi of America, officially announced the addition of A8, A7, A6, and Q5 TDI diesel models to the Q7 and A3 TDI already on sale in the US. The new models, as well as the 2013 Q7 TDI, will feature an all-new 3.0L Earlier post.)

Diesel 252
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UC Irvine study finds organic constituents of UFP play important role in heart disease; suggestions for more effective emission control

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m aerodynamic diameter) resulting from internal-combustion engine exhaust and from chemical reactions in the air play an important role in the progression of heart disease, the leading cause of death in the US. The findings thus suggest a direction for mor effective emission control measures—i.e.,

Emissions 225
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Study finds 2008 recession contributed to increase in age of US LDV fleet, slowing of emission reductions

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In the study, the authors used collected on-road emission measurements from sites in three western United States cities—Denver, Los Angeles and Tulsa—to highlight some of the changes in the on-road fleet’s age distribution and to estimate the implications on the fleet’s emissions. 29% higher for carbon monoxide; 9?14%

2008 246
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Volkswagen Group shows 3 hydrogen fuel cell concepts at LA Show: Audi A7 Sportback h-tron; Golf Sportwagen HyMotion; Passat HyMotion

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Because the exhaust system only has to handle water vapor, it is made of weight-saving plastic. An outer skin made from carbon fiber reinforced polymer (CFRP) encases the inner aluminum shell. Since 2013 Audi has been operating a pilot plant ( earlier post ) in which renewable wind power is used to produce hydrogen by electrolysis.

Audi 278