Fine particle-bound PAHs derivatives at mountain background site(Mount Tai)of the North China:Concentration,source diagnosis and health risk assessment  

作　　者：Lei Zhao Shanjun Song Penghui Li Jing Liu Jing Zhang Lei Wang Yaqin Ji Jinpeng Liu Liqiong Guo Jinbao Han 

机构地区：[1]School of Environmental Science and Safety Engineering,Tianjin University of Technology,Tianjin 300384,China [2]Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology,Tianjin 300384,China [3]National Institute of Metrology,Beijing 100029,China [4]Easy Clear(Tianjin)Environment Protection Science&Technology Co.,Itd,Tianjin 300380,China [5]Tianjin SF-Bio Industrial Bio-Tec Co.,Ltd,Tianjin 300462,China [6]Hebei research center for Geoanalysis,Hebei 071000,China [7]College of Environmental Science and Engineering,Nankai University,Tianjin,300350,China [8]Institute of Disaster Medicine,Tianjin University,Tianjin 300072,China [9]College of Quality and Technical Supervision,Hebei University,Baoding,Hebei 071002,China

出　　处：《Journal of Environmental Sciences》2021年第11期77-87,共11页环境科学学报（英文版）

基　　金：supported by the China Postdoctoral Science Foundation(No.2020M670667);the Tianjin Municipal Education Commission Research Project(No.2017KJ244);the Key Research and Development Plan of Tianjin(No.18YFZCSF01400);the National Natural Science Foundation of China(Nos.41701579,21806158).

摘　　要：Ten nitrated polycyclic aromatic hydrocarbons(nPAHs)and 4 oxygenated polycyclic aromatic hydrocarbons(oPAHs)in fine particulate matter(PM2.5)samples from Mount Tai were analyzed during summer(June to August),2015.During the observation campaign,themean concentration of total nPAHs and oPAHs was 31.62 pg/m^(3)and 0.15 ng/m^(3),respectively.Two of the monitored compounds,namely 9-nitro-anthracene(9N-ANT)(6.86 pg/m^(3))and 9-fluorenone(9FO)(0.05 ng/m^(3))were the predominant compounds of nPAHs and oPAHs,respectively.The potential source and long-range transportation of nPAHs and oPAHs were investigated by the positive matrix factorization(PMF)method and the potential source contribution function(PSCF)methods.The results revealed that biomass/coal burning,gasoline vehicle emission,diesel vehicle emission and secondary formation were the dominant sources of nPAHs and oPAHs,which were mainly from Henan province and Beijing-Tianjin-Hebei region and Bohai sea.The incremental life cancer risk(ILCR)values were calculated to evaluate the exposure risk of nPAHs and oPAHs for three group people(infant,children and adult),and the values of ILCR were 7.02×10^(−10),3.49×10^(−9)and 1.41×10^(−8)for infant,children and adults,respectively.All these values were lower than the standard of EPA(Environmental Protection Agency)(<10−6),indicating acceptable health risk of nPAHs and oPAHs.

关 键 词：NITRO-PAHS oxy-PAHs PMF PSCF Risk assessment 

分 类 号：X513[环境科学与工程—环境工程]