| 柴油发动机车辆排放废气对城市大气质量影响的研究 |
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| 引用本文： | 姚渭溪,张锦春,曹学丽,孙辰,冯健,赵起越.柴油发动机车辆排放废气对城市大气质量影响的研究[J].环境科学,1994,15(3):61-64. |
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| 作者姓名： | 姚渭溪 张锦春 曹学丽 孙辰 冯健 赵起越 |
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| 作者单位： | 中国科学院生态环境研究中心，北京市环境监测中心 |
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| 摘 要： | 报告了柴油发动机车辆在不同工况下排放废气中多环芳烃变化的规律及其对城市大气质量的影响。试验表明，不同类型的柴油发动机的排污量不同，既使是同一台柴油发动机在不同工况下，排污量也有较大差异，一般以负荷百分数在２％－５％时排污量最小，在该废气和北京市区大气中分别检出了致突变悸性比苯并芘更大的环戊二烯并（ｃ，ｄ）芘。
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| 关 键 词： | 柴油发动机 车辆 多环芳烃 |
| 修稿时间： | 1993/10/15 0:00:00 |
Effects of exhaust gas from diesel vehicles on urban air quality |
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| Yao Weixi,Zhang jinchun.Effects of exhaust gas from diesel vehicles on urban air quality[J].Chinese Journal of Environmental Science,1994,15(3):61-64. |
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| Authors: | Yao Weixi Zhang jinchun |
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| Abstract: | he changes in the concentration of polycyclic aromatic hydrocarbons (PAHs) in exhaust gas emitted from diesel vehicles under different working conditions and their effects on urban air quality were reported in this paper. The PAHs emissions were found to be related to the types of engine and their conditions, with the lowest emission generated upon an operation load of between about 2 %-- 5 %.Cyclopenta (c, d)pyrene was measured respectively in the exhaust gases and urban air,and was found to have a much higher mutagenicity than benzo(a)pyrene. |
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| Keywords: | diesel vehicles poiycyclic aromatic hydrocarbons air quality cyclopenta (c d ) pyrene |
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