Pollution Characteristics and Risk Assessment of Nitro Polycyclic Aromatic Hydrocarbons in PM2.5 of Nanjing, China

被引：0

作者：

Fu Y.-Y. ^{[1
,2
]}

Wen H.-Z. ^{[1
]}

Wang X.-H. ^{[2
]}

Yu N.-Y. ^{[1
]}

Li B. ^{[2
]}

Wei S. ^{[1
]}

机构：

[1] State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing

[2] Jiangsu Academy of Environmental Industry and Technology, Nanjing

来源：

Huanjing Kexue/Environmental Science | 2021年 / 42卷 / 06期

关键词：

1,8-dnitropyrene (1, 8N-Pyr); 3-nitrofluoranthene (3N-Flt); 9-nitroanthracene (9N-Ant); Biomass burning; Carcinogenic risk; Secondary particles;

D O I：

10.13227/j.hjkx.202009238

中图分类号：

学科分类号：

摘要：

Nitro polycyclic aromatic hydrocarbons (NPAHs) are important pollutants with carcinogenic effects present in PM2.5. To analyze the pollution characteristics and sources of NPAHs, 14 samples of PM2.5 were collected in Nanjing from November 2017 to March 2018. The results showed that, 2,8-dinitrodibenzothiophene (743 pg•m-3), 2, 7-dinitrofluorene (331 pg•m-3), 9-nitroanthracene (326 pg•m-3), 3-nitrofluoranthene (217 pg•m-3), and 1,8-dinitropyrene (193 pg•m-3) were dominant, and the detection concentrations notably varied between seasons; the highest concentrations occurred in winter (3 082 pg•m-3) followed by autumn (1 553 pg•m-3) and spring (1 218 pg•m-3). The ratio of nitrofluoranthene and 1-nitropyrene concentrations, and 9-nitroanthracene and 1-nitropyrene concentrations, indicated that the main sources of NPAHs in the PM2.5 of Nanjing were photooxidation of polycyclic aromatic hydrocarbons and biomass burning. NPAHs were more typically associated with smaller particles, which further indicated that secondary formation is an important source. The current carcinogenic risk of NPAHs in PM2.5 in Nanjing is controllable, and dinitro-polycyclic aromatic hydrocarbons represent the highest level of risk. The data presented in this study provide important baseline information that can inform the management of risks associated with NPAHs in PM2.5 in Nanjing. © 2021, Science Press. All right reserved.

引用

页码：2626 / 2633

页数：7

共 26 条

[1] Oh S M, Kim H R, Park Y J, Et al., Organic extracts of urban air pollution particulate matter (PM2.5)-induced genotoxicity and oxidative stress in human lung bronchial epithelial cells (BEAS-2B cells), Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 723, 2, pp. 142-151, (2011)
[2] Andre V, Billet S, Pottier D, Et al., Mutagenicity and genotoxicity of PM2.5 issued from an urbano-industrialized area of Dunkerque (France), Journal of Applied Toxicology, 31, 2, pp. 131-138, (2011)
[3] Gilli G, Pignata C, Schiliro T, Et al., The mutagenic hazards of environmental PM2.5 in Turin, Environmental Research, 103, 2, pp. 168-175, (2007)
[4] IARC: Outdoor air pollution a leading environmental cause of cancer deaths, international agency of research on cancer
[5] Lammel G, Kitanovski Z, Kukucka P, Et al., Oxygenated and nitrated polycyclic aromatic hydrocarbons in ambient air-levels, phase partitioning, mass size distributions, and inhalation bioaccessibility, Environmental Science & Technology, 54, 5, pp. 2615-2625, (2020)
[6] Achten C, Andersson J T., Overview of polycyclic aromatic compounds (PAC), Polycyclic Aromatic Compounds, 35, 2-4, pp. 177-186, (2015)
[7] Titaley I A, Walden D M, Dorn S E, Et al., Evaluating computational and structural approaches to predict transformation products of polycyclic aromatic hydrocarbons, Environmental Science & Technology, 53, 3, pp. 1595-1607, (2019)
[8] Abbas I, Badran G, Verdin A, Et al., Polycyclic aromatic hydrocarbon derivatives in airborne particulate matter: sources, analysis and toxicity, Environmental Chemistry Letters, 16, 2, pp. 439-475, (2018)
[9] Collins J F, Brown J P, Alexeeff G V, Et al., Potency equivalency factors for some polycyclic aromatic hydrocarbons and polycyclic aromatic hydrocarbon derivatives, Regulatory Toxicology and Pharmacology, 28, 1, pp. 45-54, (1998)
[10] Misaki K, Takamura-Enya T, Ogawa H, Et al., Tumour-promoting activity of polycyclic aromatic hydrocarbons and their oxygenated or nitrated derivatives, Mutagenesis, 31, 2, pp. 205-213, (2016)

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