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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. The researchers collected data from the year 2005, the most recent data available at the time of the study. While the study is based on data from 2005, Barrett says the results are likely representative of today’s pollution-related health risks.

MIT 378
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Greyrock, Tsinhua U, DRI to assess potential of synthetic diesel to improve air quality in China

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Greyrock Energy, a developer of a gas-to-liquids (GTL) process that produces synthetic diesel, will participate with Tsinghua University of Beijing, China and the Desert Research Institute (DRI) of Reno, Nevada to quantify the positive impact on air quality from the use of synthetic diesel fuels as compared with petroleum derived diesel fuels.

Diesel 150
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Study finds methane leaks from three large US natural gas fields in line with EPA estimates

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The gas fields we studied for this paper produced about 20% of the natural gas in the United States, and more than half the shale gas, so this moves us closer to understanding methane leaks from US natural gas production. CIRES is a partnership of NOAA and the University of Colorado Boulder. tons (33,000 lbs) per hour, or 0.18-0.41%

EPA 150
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Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

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A team led by researchers at Oregon State University has discovered novel nitrated polycyclic aromatic hydrocarbon (NPAH) compounds produced by combustion sources or formed in the atmosphere that are hundreds of times more mutagenic than their parent PAHs, which are known carcinogens. Staci Simonich. Dashwood, and Staci L.

Pollution 275
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USGS/BOEM study identifies method to differentiate between natural seepage and produced oils in waters off Southern California

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The report— Biomarker Chemistry and Flux Quantification Methods for Natural Petroleum Seeps and Produced Oils, Offshore Southern California —covers a joint USGS and BOEM 10-year series of studies of natural oil seeps mainly from the Santa Barbara Channel west of Los Angeles, California. —Lorenson et al.

Oil 199
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Arizona State Students Develop a Solar-Powered Air Filtration System

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A team of students from the Fulton Schools of Engineering at Arizona State University is helping to improve the air quality for nomadic communities in Mongolia. To improve air quality, burning unrefined coal for heat was banned. Warudkar is an associate aeroelasticity engineer at Virgin Galactic , in Los Angeles.

Arizona 124
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Study concludes that NG leakage higher than reflected in inventories; transportation fuel climate benefits questioned

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Atmospheric tests covering the entire country indicate emissions around 50 percent more than EPA estimates ,” said lead author Adam Brandt at Stanford University. Modeling has shown climate benefits from coal to NG switching for power generation over all time periods (i.e., Alvarez et al. number of devices).

Climate 247