Indoor/outdoor relationships, sources and cancer risk assessment of NPAHs and OPAHs in PM2.5 at urban and suburban hotels in Jinan, China
Indoor/outdoor relationships, sources and cancer risk assessment of NPAHs and OPAHs in PM2.5 at urban and suburban hotels in Jinan, China
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中国济南市区及郊区酒店 PM2.5 中 NPAHs 和 OPAHs 的室内外关系、来源及癌症风险评估
DOI：
10.1016/j.atmosenv.2018.03.058
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发表时间：
2018-06
影响因子：
5
通讯作者：
Wenxing Wang
中科院分区：
文献类型：
--
作者：
Yanyan Li;Lingxiao Yang;Xiangfeng Chen;Pan Jiang;Ying Gao;Junmei Zhang;Hao Yu;Wenxing Wang
2016年1月在济南市城区和郊区进行了室内和室外PM2. 5中16种NPAHs和5种OPAHs的配对测量。室内和室外的NPAHs和OPAHs的浓度在城市站点相比，郊区站点较高。9-N-ANT（16-42%）、2+ 3 N-FLA（15-51%）、2N-PYR（6-20%）和1 N-PYR（4-6%）是所有站点的主要NPAH，而9-FO（61-81%）是最丰富的OPAH。固体燃料燃烧、机动车尾气排放和二次发电是该研究区多环芳烃衍生物的主要来源。第一个城市室内监测点（绿色树酒店）和郊区室内监测点（七星星酒店）90%的NPAHs和OPAHs的I/O比值均小于1.00，表明室内监测的化合物中有许多来自室外。在第二个城市室内采样点（简称URI 2，山东大学宾馆），二环和三环NPAHs和OPAHs的I/O比值均大于1.00，这可能是由于在测量点附近发生了烹饪活动。室外2+ 3 N-FLA/1 N-PYR的测量结果表明，城市站点主要是一次排放，郊区站点主要是二次排放，平均比值分别为3.76和12.22。所有位点的2+ 3 N-FLA/2N-PYR的平均比值为3.3，表明OH引发的反应是主要的次生形成途径。夜间2+ 3 N-FLA/1 N-PYR比值在所有研究中心均显著高于日间比值。在郊区污染严重的情况下，这种差异尤其明显，这表明重污染和夜间条件促进了二次生产。此外，当人群暴露于与城市室外空气相同的水平时，城市室外（URO）人群患癌症的风险最高。这一风险表明，成年人患癌症的风险可能更高。
Paired indoor and outdoor measurements of 16 NPAHs and 5 OPAHs in PM2.5were conducted at urban and suburban sites during January 2016 in Jinan, China. The concentrations of both indoor and outdoor NPAHs and OPAHs were higher at the urban site compared with the suburban site. 9N-ANT (16–42%), 2+3N-FLA (15–51%), 2N-PYR (6–20%), and 1N-PYR (4–6%) were the dominant NPAHs at all sites, and 9-FO (61–81%) was the most abundant OPAHs. Solid fuel combustion, motor vehicle exhausts, and secondary generation were the main sources of the PAH derivatives in this study area. The I/O ratios of 90% of NPAHs and OPAHs at the first urban indoor site (abbreviated as URI1, Green Tree Inn) and the suburban indoor site (abbreviated as SUI, the Seven Star Hotel) were <1.00 indicating that many of the compounds measured indoors originated from outdoor sources. At the second urban indoor site (abbreviated as URI2, Shandong University Hotel), the I/O ratios of 2- and 3-ring NPAHs and OPAHs were >1.00, which was likely due to cooking activities occurring near the measurement site. Measurements of outdoor 2+3N-FLA/1N-PYR revealed mainly primary emission at the urban site and secondary sources at the suburban site, the average ratios were 3.76 and 12.22, respectively. The average ratio of 2+3N-FLA/2N-PYR at all sites was 3.3, indicating that the OH-initiated reaction was the dominant secondary formation pathway. Nighttime ratios of 2+3N-FLA/1N-PYR were significantly higher than the daytime ratios at all sites. The difference was especially pronounced during heavily polluted conditions at the suburban site, which suggests that heavy pollution and nighttime conditions promote secondary production. Additionally, the cancer risk was highest in urban outdoor (abbreviated as URO) when the population expose to the level as the outdoor air in the urban. The risk suggested that adults may be at a higher cancer risk.
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影响因子：
11.4
作者：
Miller-Schulze JP;Paulsen M;Toriba A;Tang N;Hayakawa K;Tamura K;Dong L;Zhang X;Simpson CD
通讯作者：
Simpson CD
DOI：
10.1016/j.scitotenv.2014.10.054
发表时间：
2015-02
期刊：
The Science of the total environment
影响因子：
--
作者：
C. Wei;Yongming Han;B. A. Bandowe;Junji Cao;Rujin Huang;H. Ni;Jie Tian;W. Wilcke
通讯作者：
C. Wei;Yongming Han;B. A. Bandowe;Junji Cao;Rujin Huang;H. Ni;Jie Tian;W. Wilcke
影响因子：
11.4
作者：
D. K. Singh;K. Kawamura;Ayako Yanase;L. Barrie
通讯作者：
D. K. Singh;K. Kawamura;Ayako Yanase;L. Barrie
影响因子：
10.4
作者：
Schuetzle D
通讯作者：
Schuetzle D
影响因子：
6.3
作者：
S. Lou;F. Holland;F. Rohrer;K. Lu;B. Bohn;T. Brauers;Chih-Chung Chang-;H. Fuchs;R. Häseler;
通讯作者：
S. Lou;F. Holland;F. Rohrer;K. Lu;B. Bohn;T. Brauers;Chih-Chung Chang-;H. Fuchs;R. Häseler;