Distribution and Source of Atmospheric Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons in Tieling City, Liaoning Province, a Typical Local City in Northeast China

Asian Journal of Atmospheric Environment

Ning Tang¹  Kazuichi Hayakawa¹  Yuki Araki¹  Takayuki Kameda¹  Akira Toriba¹  Kenji Tamura²  Lijun Dong³  Qiuhua Liu³  Ruonan Ji³  Xuemei Zhang³ 

[1] Graduate School of Natural Science and Technology, and Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan;National Institute for Environmental Studies, 16-2, Onogawa, Tsukuba 305-8506, Japan;Shenyang Center for Disease Control and Prevention, No. 37 Qishan Zhong Road Huanggu District, Shenyang 110031, China;

关键词: polycyclic aromatic hydrocarbons (pahs);    nitropolycyclic aromatic hydrocarbons (npahs);    airborne particulate;    coal combustion;    tieling city;   

DOI  :  10.5572/ajae.2009.3.1.052

来源: DOAJ

【 摘 要 】

Airborne particulates were collected in three different size fractions (>7 μm; 2.1-7 μm; <2.1 μm) by using Andersen low-volume air samplers at three sites in Tieling city, Liaoning Province, a typical local city in northeast China, in every season during the period from July 2003 to May 2004. Nine polycyclic aromatic hydrocarbons (PAHs) and seven nitropolycyclic aromatic hydrocarbons (NPAHs) in the airborne particulates were determined by HPLC with fluorescence and chemiluminescence detection, respectively. The mean total concentrations of the nine PAHs and seven NPAHs were highest at The mixed residential and light industrial site, and lowest at the residential site near the suburbs. At all sites, more than 70% of the total PAHs and more than 60% of the total NPAHs were found in the finest particulate (<2.1 μm) fraction. Both cluster analysis and several diagnostic ratios showed that the major contributors of PAHs and NPAHs in airborne particulates were coal combustion systems such as domestic stoves and coal boilers in all seasons in Tieling city.

【 授权许可】

Unknown