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CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

Green Car Congress

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent.

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California ARB: GHG emissions fell below 1990 levels for first time in 2016; down 13% from 2004 peak; transportation emissions up 2%

Green Car Congress

The California Air Resources Board (CARB) announced that greenhouse gas emissions in California in 2016 fell below 1990 levels for the first time since emissions peaked in 2004—a reduction roughly equivalent to taking 12 million cars off the road or saving 6 billion gallons of gasoline a year.

2004 225
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UC Riverside team examines influence of mid-and high-level ethanol blends on pollution from GDI flex fuel vehicle

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Regulated emissions for all test fuels over the cold-start and hot-start LA92 cycles. Regulated emissions for all test fuels over the cold-start and hot-start LA92 cycles. Data presented as mean ± standard deviation, N=3. Their paper is published in the ACS journal Energy & Fuels. Yang et al. —Yang et al.

Pollution 255
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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

Green Car Congress

NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers.

Emissions 150
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UC Riverside researchers find mixed emissions impact from use of higher ethanol and butanol fuels in FFVs

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Particulate emissions were clearly influenced by certain fuel parameters including oxygen content, hydrogen content, and aromatics content. The isobutanol blend resulted in higher butyraldehyde emissions; butyraldehyde possesses similar reactivity and mutagenicity to acetaldehyde.

Emissions 230
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Study: consumer products overtake transportation as largest source of VOCs air pollution in cities

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Consumer products such as shampoo, cleaning products and paint now contribute as much to emitted volatile organic compounds (VOCs) in cities as tailpipe emissions from vehicles, according to a new study led by NOAA. Total VOC emission factors for end uses of petrochemical sources in the study. —McDonald et al.

Pollution 264
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OECD: rising air pollution-related deaths taking heavy toll on society; more should be done to reduce transport emissions

Green Car Congress

trillion a year in premature deaths and ill health; these costs will rise without government action to limit vehicle emissions, according to a new report published by the Organisation for Economic Co-operation and Development (OECD): “The Cost of Air Pollution: Health Impacts of Road Transport”. Over the five?

Pollution 218