Systematic approach to evaluating trade-offs among fuel options: The lessons of MTBE

被引:16
|
作者
Davis, J. Michael
Thomas, Valerie M.
机构
[1] US EPA, Natl Ctr Environm Assessment, Off Res & Dev, Res Triangle Pk, NC 27711 USA
[2] Georgia Inst Technol, Sch Ind & Syst Engn, Atlanta, GA 30332 USA
关键词
MTBE; methyl tertiary butyl ether; ethanol; oxygenates; alkylates; risk assessment; life-cycle assessment; multimedia assessment; comparative assessment; comprehensive environmental assessment;
D O I
10.1196/annals.1371.068
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The fuel additive methyl tertiary butyl ether (MTBE) has been used in an effort to improve air quality in the United States, but other undesirable effects, particularly the contamination of water resources, were eventually judged to outweigh any air quality benefits it may have offered. The experience with MTBE offers many lessons, including the need to evaluate potential positive and negative environmental impacts associated with fuel choices using a comprehensive approach that combines a product life-cycle perspective with the risk assessment paradigm. Such an approach, referred to as "comprehensive environmental assessment" (CEA), is illustrated here by highlighting some of the issues evaluating reformulated gasoline (RFG) produced with MTBE, ethanol, or no oxygenate.
引用
收藏
页码:498 / 515
页数:18
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