Passive air sampling of halogenated polycyclic aromatic hydrocarbons in the largest industrial city in Korea: Spatial distributions and source identification.
Passive air sampling of halogenated polycyclic aromatic hydrocarbons in the largest industrial city in Korea: Spatial distributions and source identification.
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DOI：
10.1016/j.jhazmat.2019.121238
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发表时间：
2020-01
影响因子：
13.6
通讯作者：
Quang Tran Vuong;Seong-Joon Kim;T. Nguyen;Phan Quang Thang;Sang-Jin Lee;T. Ohura;Sung-Deuk Choi
中科院分区：
文献类型：
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作者：
Quang Tran Vuong;Seong-Joon Kim;T. Nguyen;Phan Quang Thang;Sang-Jin Lee;T. Ohura;Sung-Deuk Choi
一些卤代多环芳烃（Halo-PAHs）已知比其母体多环芳烃（PAHs）毒性更大，但对卤代多环芳烃的研究有限。在这项研究中，使用被动空气采样器在韩国最大的工业城市之一蔚山的20个采样点监测Halo-PAH和PAH污染。Σ24ClPAHs、Σ11BrPAHs和Σ13PAHs的平均浓度分别为207 pg/m3、84 pg/m3和26 ng/m3。工业区的Halo-PAHs和PAHs浓度均高于城市和农村地区。能量不利的Halo-PAHs与其对应的母体PAHs之间的强相关性表明，Halo-PAHs的主要形成机制不是PAHs的直接卤化。低分子量单卤环芳烃及其母体芳烃占主导地位。区分了石油化工、汽车、造船、有色等工业配合物中ClPAHs和BrPAHs的分布。ClPAHs、BrPAHs和PAHs在工业场所的毒性当量（TEQs）也最高，分别为4.2、0.5和18.3 pg-TEQ/m3，反映了Halo-PAHs的高毒性。据我们所知，这是第一个使用被动式空气采样器报告ClPAHs和BrPAHs大气水平的研究。
Some halogenated polycyclic aromatic hydrocarbons (Halo-PAHs) are known to be more toxic than their corresponding parent PAHs, but studies on Halo-PAHs have been somewhat limited. In this study, passive air samplers were used to monitor Halo-PAH and PAH contamination at 20 sampling sites in Ulsan, one of the largest industrial cities in South Korea. The mean concentrations of Σ24ClPAHs, Σ11BrPAHs, and Σ13PAHs were 207 pg/m3, 84 pg/m3, and 26 ng/m3, respectively. Industrial areas displayed higher concentrations of both Halo-PAHs and PAHs than urban and rural areas. Strong correlations between energetically unfavorable Halo-PAHs and their corresponding parent PAHs suggest that the main formation mechanism of Halo-PAHs is not direct halogenation of PAHs. Low molecular weight Halo-PAHs with one halogen atom and their parent PAHs were dominant. The profiles of ClPAHs and BrPAHs in petrochemical, automobile, shipbuilding, and non-ferrous industrial complexes were distinguished. The toxicity equivalency quantities (TEQs) of ClPAHs, BrPAHs, and PAHs at the industrial sites also showed the highest values of 4.2, 0.5, and 18.3 pg-TEQ/m3, respectively, reflecting the high toxicity of Halo-PAHs. To the best of our knowledge, this is the first study reporting atmospheric levels of both ClPAHs and BrPAHs using passive air samplers.