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US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

Green Car Congress

succeeded in isolating the simplest CI and reported direct kinetic measurements of its reactions with water, NO, NO 2 , and SO 2. —Professor Dudley Shallcross, Professor in Atmospheric Chemistry at The University of Bristol. Criegee intermediates (CIs) play a central role in the formation of numerous atmospheric compounds.

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Researchers measure reaction rates of second Criegee intermediate

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The new measurements will provide further insight into hydrocarbon combustion and atmospheric chemistry. Taatjes and his colleagues confirmed this prediction and made the first experimental determination of the reaction rate of a Criegee intermediate with water. Earlier post.).

Water 218
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Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

Green Car Congress

Researchers from the University of Minnesota have produced a spatially and temporally explicit life cycle inventory (LCI) of air pollutants from gasoline, ethanol derived from corn grain, and ethanol from corn stover for the contiguous US (the lower 48 states). Dashed lines show US average emissions. Credit: ACS, Tessum et al.

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COVID-19 Forced Us All to Experiment. What Have We Learned?

Cars That Think

As economists and social scientists, we draw two fundamental insights from these examples of forced experimentation. He convinced the authorities to remove the handle from the pump of a particular water source that had been implicated in the spread of the disease, thereby halting that spread. The Great Boston Fire of 1872.

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