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

Green Car Congress

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. Cappa, Jose L.

Pollution 264
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CMU study finds taxes on emissions would result in more rapid electrification by ridesharing companies

Green Car Congress

We optimize fleet composition (mix of conventional vehicles (CVs), hybrid electric vehicles (HEVs), and battery electric vehicles (BEVs)) and operations to satisfy demand at minimum cost and compare findings across a wide range of present-day and future scenarios for three cities. Air pollution is a classic case where free markets fail.

Tax 199
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MIT team proposes flex-fuel gasoline-alcohol engine PHEV long-haul trucks

Green Car Congress

In a paper being presented at WCX SAE World Congress Experience in Detroit this week, a team from MIT is proposing the use of a flex-fuel gasoline-alcohol engine approach for a series-hybrid powertrain for long-haul Class 8 trucks. Ethanol or methanol would be employed to increase knock resistance. —Daniel Cohn. and Bromberg, L.

MIT 247
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California ARB hosting public workshop to discuss reducing in-use emissions from HD diesel

Green Car Congress

The California Air Resources Board (CARB) staff will host a public workshop on 11 February to discuss ideas and strategies to reduce in-use emissions from heavy-duty diesel vehicles operating in the State of California.

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Research shows clean fuel-use for ships off California coast extremely effective in reducing sulfur dioxide pollution

Green Car Congress

Data collected during a major 2010 state-federal atmospheric research project show that the first-in-the-nation regulation requiring ocean-going vessels to use clean fuel when near the California coast has been extremely effective in reducing sulfur dioxide pollution from ships, according to the California Air Resources Board (ARB).

Pollution 186
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OECD paper presents and analyzes policies and programs to foster market growth of green cars

Green Car Congress

The paper, “Market Development for Green Cars”, presents and analyses policies, programs and approaches for the development, market introduction and diffusion of green cars (primarily from the demand (pull) side). It also reviews government policies in a number of OECD countries as well as a selection of non-OECD economies.

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Study finds “markedly” high levels of diesel exhaust present in commuter trains powered by locomotives in pull-mode

Green Car Congress

Exposure to these pollutants was most elevated in the coach located closest to the locomotive: geometric means were 126,000# cm -3 for UFP, 249 μm 2 cm −3 for LDSA, and 17,800 ng m −3 of BC; these concentrations are much higher than those previously reported for other modes of public transportation. Preliminary results are positive.

Exhaust 150