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首页> 外文期刊>Environmental Science & Technology >Comment on 'Natural and Anthropogenic Ethanol Sources in North America and Potential Atmospheric Impacts of Ethanol Fuel Use'
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Comment on 'Natural and Anthropogenic Ethanol Sources in North America and Potential Atmospheric Impacts of Ethanol Fuel Use'

机译:评论“北美的天然和人为来源的乙醇及其对乙醇燃料使用的潜在大气影响”

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摘要

Millet et al. reported an assessment of natural and anthropogenic ethanol sources in North America using aircraft measurements in 2004-2006. Their estimate for ethanol emissions from the continental U.S. in 2005 is 440 GgC yr~(-1). Millet et al. used this estimate to place in perspective the impact of potential future ethanol emissions associated with the biofuel requirements of the U.S. Energy Independence and Security Act (EISA) assuming the requirements of EISA would be met entirely with ethanol. The EISA requires the use of 36 billion (ethanol equivalent) gallons of renewable biofuels by 2022. Millet et al. considered vehicle tailpipe emissions and other anthropogenic ethanol emissions given in the U.S. Environmental Protection Agency (EPA) National Emissions Inventory for 2005~2 and used these data to estimate emissions from a future vehicle fleet We point out that emissions from the on-road vehicle fleet in the U.S are decreasing and that this emission trend needs to be considered in assessments of future emissions. Millet et al. did not consider this emission trend and consequently overestimate the likely future emissions of ethanol by approximately a factor of 4.
机译:Millet等。报道了2004-2006年通过飞机测量对北美天然和人为乙醇来源的评估。他们估计2005年美国大陆的乙醇排放量为440 GgC yr〜(-1)。 Millet等。假设该EISA要求完全可以用乙醇满足,则我们使用此估算值来透视与美国《能源独立与安全法》(EISA)的生物燃料要求相关的未来潜在乙醇排放的影响。 EISA要求到2022年使用360亿加仑(乙醇当量)的可再生生物燃料。考虑了美国环境保护局(EPA)2005〜2年国家排放清单中给出的车辆尾气排放和其他人为排放的乙醇,并使用这些数据估算了未来车辆的排放量。我们指出,公路车辆的排放量美国的排放量正在下降,在评估未来排放量时需要考虑这种排放趋势。 Millet等。没有考虑到这种排放趋势,因此高估了未来乙醇的潜在排放量约4倍。

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  • 来源
    《Environmental Science & Technology》 |2013年第4期|2139-2140|共2页
  • 作者单位

    Systems Analytics and Environmental Sciences, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053, United States;

    Systems Analytics and Environmental Sciences, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053, United States;

    Systems Analytics and Environmental Sciences, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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