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Researchers find Nissan LEAF creates less CO2 than Toyota Prius hybrid in west US and Texas, but more in N. Midwest

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For example, the state with the largest state subsidies ($7500) for BEVs is West Virginia, which is under the RFC region, where the Nissan LEAF and the Chevy Volt are likely higher emitting than the Toyota Prius. —Tamayao et al. Mili-Ann M. Tamayao, Jeremy J. Michalek, Chris Hendrickson, and InĂªs M. 5b00815.

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Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

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The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Credit: ACS, Thiruvengadam et al. Click to enlarge.

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