陈晓秋, 张建华, 俞是聃, 付彦斌. 交通路口大气气溶胶的污染状况以及多环芳烃的污染特征研究[J]. 分析测试技术与仪器, 2007, (3): 194-198.
引用本文: 陈晓秋, 张建华, 俞是聃, 付彦斌. 交通路口大气气溶胶的污染状况以及多环芳烃的污染特征研究[J]. 分析测试技术与仪器, 2007, (3): 194-198.
CHEN Xiao-qiu, ZHANG Jian-hua, YU Shi-dan, FU Yan-bin. The Pollution State of Atmospheric Aerosol and Pollution Propertyof PAHs in Atmospheric Aerosol at the Traffic Crossing[J]. Analysis and Testing Technology and Instruments, 2007, (3): 194-198.
Citation: CHEN Xiao-qiu, ZHANG Jian-hua, YU Shi-dan, FU Yan-bin. The Pollution State of Atmospheric Aerosol and Pollution Propertyof PAHs in Atmospheric Aerosol at the Traffic Crossing[J]. Analysis and Testing Technology and Instruments, 2007, (3): 194-198.

交通路口大气气溶胶的污染状况以及多环芳烃的污染特征研究

The Pollution State of Atmospheric Aerosol and Pollution Propertyof PAHs in Atmospheric Aerosol at the Traffic Crossing

  • 摘要: 研究了城市交通路口大气气溶胶污染状况及气溶胶中多环芳烃(PAHs)的污染特征.在福州市主要交通路口之一的五四路和二环路的交叉路口采集大气中PM2.5、PM5、PM10、PM2.5~5.0、PM5~10、PM10~100及TSP. 将优化的高效液相色谱编程荧光法用于各切割粒径气溶胶样品中的12种多环芳烃分析.研究结果表明:交通路口颗粒物中的飘尘(PM10)占总悬浮颗粒物(TSP)的70%;PM5占飘尘(PM10)的70%;而细粒子PM2.5占PM5的73%.交通源所产生的PAHs主要存在于细粒子PM2.5中, 通过特征标志的多环芳烃的比值识别,交通路口大气颗粒物中的多环芳烃主要来源于机动车尾气排放.

     

    Abstract: The pollution state of Atmospheric Aerosol and pollution characteristics of PAHs in Atmospheric Aerosol at the traffic crossing in city were studied. The samples of PM2.5、PM5、PM10、PM2.5~5.0、PM5~10、PM10~100 and total suspended particulates (TSP) were collected at one of the major traffic crossings, WuShiBei Road and ErHuang Road in Fuzhou. The concentration of mass PAHs in the various particle diameter aerosol were measured by the optimized high\|performance liquid chromatographic (HPLC) method with fluorescence programmed multiple wavelength shift detection. The results shown that the inhalable particulates (PM10) in airborne particles were in the contribution of 70% to the total suspended particulates(TSP). 70% of inhalable particulates (PM10) were PM5; but the small diameter PM2.5 were in percentage of 73% to PM5. The PAHs raised by traffic pollution were mainly existed in the small diameter PM2.5. According to the proportion of characteristics identified PAHs, it can been indicated that the main contribution to the PAHs production in airborne particles was from the dust raised by motor vehicles in traffic crossing.

     

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