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HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.

Emissions 353
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Insight into benzene formation could help development of cleaner combustion engines

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That insight could also help the car industry make cleaner combustion engines. The industrial processes behind crude oil refineries and the inner-workings of gas-powered combustion engines can emit PAHs, which can form into toxic air pollutants such as soot. Zhao et al. This work was supported by the DOE Office of Science.

Cleaner 243
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CMU study finds taxes on emissions would result in more rapid electrification by ridesharing companies

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Ridesourcing vehicles’ high use intensity is economically attractive for electric vehicles, which typically have lower operating costs and higher capital costs than conventional vehicles. Air pollution is a classic case where free markets fail. —Bruchon et al.

Tax 199
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CMU study finds that coal retirement is needed for EVs to reduce air pollution

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Electric vehicles charged in coal-heavy regions can create more human health and environmental damages from life cycle air emissions than gasoline vehicles, according to a new consequential life cycle analysis by researchers from Carnegie Mellon University. UC stands for uncontrolled charging and CC stands for controlled charging.

Coal 150
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Tsinghua/Argonne Study Finds That Mass Use of EVs in China Could Result in Higher CO2 and Criteria Pollutant Emissions Than Conventional and Hybrid Gasoline Vehicles Due to Coal-Fired Generation of Electricity

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Fuel-cycle SO 2 emissions of EVs compared to those of gasoline ICEVs and HEVs in China, current (left) and future (right). The study was published online 24 May in the ACS journal Environmental Science & Technology. The power of EVs is electricity from the grid. Among the findings of the study: CO 2.

Coal 291
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3 East Coast states and DC first to participate in TCI-P cap-and-invest program for transportation

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The governors of Massachusetts, Connecticut, and Rhode Island, and the mayor of the District of Columbia announced that theirs will be the first jurisdictions to launch a new multi-state program that the principals expect will invest some $300 million per year in cleaner transportation choices.

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Tsinghua University provincial-level lifecycle study finds fuel-cycle criteria pollutants of EVs in China could be up to 5x those of natural gas vehicles due to China’s coal-dominant power mix

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In regions where the share of coal-based electricity is relatively low, EVs can achieve substantial GHG reduction, the team reports in a paper in the ACS journal Environmental Science & Technology. China recently launched several EV demonstration programs (e.g., Earlier post.] —Huo et al.

Coal 231