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Rice/EPA study finds ground-level ozone falling faster than CMAQ model predicted

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Researchers from Rice University and the US Environmental Protection Agency (EPA) report in a paper in the journal Atmospheric Chemistry that particularly in Northeastern cities, ozone levels dropped even beyond what was anticipated by cutting emissions of NO x from 2002 to 2006. from 2002 to 2006. This is good news.

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UC Davis Begins $2.8M Studies on Impacts of Escaped Nitrogen

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University of California, Davis researchers will receive $2.8 This grant is to the Agricultural Sustainability Institute, in collaboration with the University of California Agricultural Issues Center, Kearney Foundation for Soil Science, and the UC Sustainable Agriculture Research and Education Program.

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MIT study finds air quality co-benefits of US carbon policies can significantly offset costs, depending upon the policy

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At the other end of the spectrum, a transportation policy with rigid fuel-economy requirements is the most expensive policy, costing more than $1 trillion in 2006 dollars, with health benefits recouping only a quarter of those costs. In 2011, 231 counties in the US exceeded the EPA’s regulatory standards for ozone, the main component of smog.

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Study Finds Environmental and Tailpipe Pollutants Benefits in Using Biodiesel in Construction Vehicles

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Using biodiesel in construction vehicles offers promising environmental benefits in terms of reduced tailpipe emissions as well as reductions in fuel cycle emissions of selected pollutants, according to a new study by researchers at North Carolina State University. ozone, PM) problems may be less pressing.

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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. Brinkman et al. For other areas, where PM2.5 Brinkman et al.

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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

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80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. Current Legal Requirement for Use of Anhydrous Ethanol in the United States. 40 CFR § 80.27 addresses controls and prohibitions on gasoline volatility.

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New CE-CERT report finds Cummins Wesport ISL G near-zero gas engine performs with lower NOx than EPA certification standard over range of cycles

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A report released by the University of California Riverside’s College of Engineering-Center for Environmental Research and Technology (CE-CERT), found that the new 8.9L bhp-hr, NO x emissions dropped 90% compared to 2006 and older heavy-duty vehicles. With the 2010 NO x certification limit of 0.2g/bhp-hr,

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