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Study finds that current approach to limiting wintertime pollution may initially backfire

Green Car Congress

The processes that create ozone pollution in the summer can also trigger the formation of wintertime air pollution, according to a new study from researchers at the University of Colorado Boulder and NOAA, in partnership with the University of Utah. A major component of the Salt Lake Valley and Denver PM 2.5

Pollution 223
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Modelling the Impact of PHEVs on Ozone in Denver

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Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. For other areas, where PM2.5

Denver 170
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EPA awards $4.5M to advance air monitoring technology

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million to six research organizations to develop and to use low-cost air pollution sensor technology, while engaging communities to learn about their local air quality. While recent advances in technology have led to the development of low-cost air pollution sensors, they have not been widely tested, especially under field conditions.

EPA 150
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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

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The cities/metro areas studied were: Los Angeles County; Greater Toronto; Geneva Canton; Greater Prague; Cape Town; Denver City and County; New York City; Greater London; Barcelona; and Bangkok. Authors of the study included: Christopher Kennedy, University of Toronto. Julia Steinberger, University of Klagenfurt. t e CO 2 /cap.

Emissions 199
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Study quantifies impact of oil and gas emissions on Denver’s ozone problem

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The first peer-reviewed study to directly quantify how emissions from oil and natural gas (O&NG) activities influence summertime tropospheric ozone (O 3 ) pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem. McDuffie, Peter M.

Ozone 150
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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. Determining effective strategies for mitigating surface ozone (O 3 ) pollution requires knowledge of the relative ambient concentrations of its precursors, NO x , and VOCs. Murray, L. Lamsal, L. Duncan, B., … Tonnesen, G.

Ozone 150
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Study finds vehicles more important source of urban atmospheric ammonia than farms

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Vehicle tailpipes are a more important source of ammonia’s contribution to urban air pollution than is agriculture, according to a study by researchers from the US and China. Wallace and Hu Jun Leong of Rice University; M. and Tong Zhu of Peking University.

Vehicles 150