[乙醇 - 柴油混合燃料对柴油机尾气遗传毒性的研究]
[Study on the genotoxicity of exhausts of diesel engine with ethanol-diesel blending fuel].
作者信息
Liu Ke-ming, Wang Chun-hua, Zhou Lei, Zhang Ming-yue, Song Chong-lin, Fan Guo-liang, Liu Peng
出版信息
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2005 Feb;23(1):42-4.
OBJECTIVE
To study the genotoxicity of components of diesel engine exhausts with ethanol-diesel blending fuel. To provide scientific arguments to find more economical and less polluted fuels.
METHODS
Ames test, comet assay and GC-MS technique were used to test the genotoxicity and 16 kinds of PAHs on diesel engine exhausts with different proportions of ethanol (E0, E5, E10, E20).
RESULTS
Both Ames test and comet assay were positive. It shows that diesel engine exhausts can lead to mutation and DNA damage, especially in pure diesel oil. But the content of 16 kinds of PAHs and DNA damage level decreased in exhausts of E5. With the increase of ethanol proportion in diesel oil, the content of 16 kinds of PAHs and DNA damage level increased.
CONCLUSION
Compared with pure diesel oil and high proportion of ethanol fuel, E5 can reduce the genotoxicity and the brake specific exhausts of PAHs.
目的
研究柴油机尾气与乙醇 - 柴油混合燃料成分的遗传毒性。为寻找更经济且污染更小的燃料提供科学依据。
方法
采用艾姆斯试验、彗星试验和气相色谱 - 质谱联用技术，对不同乙醇比例（E0、E5、E10、E20）的柴油机尾气的遗传毒性和16种多环芳烃进行检测。
结果
艾姆斯试验和彗星试验均呈阳性。表明柴油机尾气可导致突变和DNA损伤，尤其是纯柴油尾气。但E5尾气中16种多环芳烃的含量和DNA损伤水平降低。随着柴油中乙醇比例的增加，16种多环芳烃的含量和DNA损伤水平升高。
结论
与纯柴油和高比例乙醇燃料相比，E5可降低遗传毒性和多环芳烃的制动特定尾气排放。
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