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Study: consumer products overtake transportation as largest source of VOCs air pollution in cities

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The green symbol and dashed arrow illustrate the large reductions in tailpipe VOC emission factors as precatalyst on-road gasoline vehicles were replaced by present-day vehicle fleets. Even so, lotions, paints and other products contribute about as much to air pollution as does the transportation sector. McDonald et al.

Pollution 264
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UC Davis Begins $2.8M Studies on Impacts of Escaped Nitrogen

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University of California, Davis researchers will receive $2.8 Farm machines burning oil, gasoline and diesel release nitrogen to the air. These environmental impacts are not fully documented, according to Tom Tomich, director of the Agricultural Sustainability Institute at UC Davis. Tom Tomich.

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MEEF funds 100 Tesla Model 3s for vehicle-as-a-service provider Breathe

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This latest funding will see internal combustion engine vehicles replaced as part of a contribution towards tackling the capital’s air pollution problem and supports the Mayor of London Sadiq Khan’s commitment to zero-emission transport in the capital. —Jeff Davis, Director of Breathe.

London 150
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PHEVLERs are the Zero CO2 Clean Green Machines of the Future

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and UC-Davis Emeritus and Bruce R. Frank is Professor Emeritus, Mechanical and Aeronautical Engineering at the University of California, Davis, where he established the Institute for Transportation Studies (ITS-Davis), and was director of the US Department of Energy’s National Center of Hybrid Excellence at UC Davis.

Clean 150
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Study: natural gas heavy-duty trucking fleet could benefit economy, but has mixed environmental effects

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Switching from diesel fuel to natural gas may hold advantages for the US heavy-duty trucking fleet, but more needs to be done to reach the full environmental benefits, according to a new white paper released by the Institute of Transportation Studies at the University of California, Davis, and Rice University. Environmental considerations.

Gas 150
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CRC study finds some adverse results from use of mid-level ethanol blends in MY 2001-2009 engines; DOE and ethanol industry say study significantly flawed

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Growth Energy, an ethanol industry trade group, petitioned the EPA in March 2009 to raise the limit on ethanol in gasoline from 10 to 15 percent. EPA’s decision was based largely on a DOE study of the effects of E15 on durability of catalytic converters, the primary pollution control system in a vehicle. Background. DOE response.

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New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

Green Car Congress

Many pollution control and renewable-energy applications require precious metals that are limited—there isn’t enough platinum to supply the millions and millions of automobiles driven in the world. Mullite is not only easier to produce than platinum, but also better at reducing pollution in diesel engines. Kyeongjae Cho.

Exhaust 240