Non-target screening of organic pollutants and target analysis of halogenated polycyclic aromatic hydrocarbons in the atmosphere around metallurgical plants by high-resolution GC/Q-TOF-MS
文献类型：期刊论文
| 作者 | Yang, Lili; Wu, Jiajia; Zheng, Minghui; Cao, Zhe; Li, Cui; Shi, Miwei; Liu, Guorui
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| 刊名 | ENVIRONMENTAL SCIENCES EUROPE
 |
| 出版日期 | 2020-07-15 |
| 卷号 | 32期号:1页码:1-16 |
| 关键词 | Halogenated polycyclic aromatic hydrocarbons Persistent organic pollutants GC Q-TOF-MS Air pollutants Environmentally persistent free radicals |
| ISSN号 | 2190-4707 |
| 英文摘要 | Background The 16 priority polycyclic aromatic hydrocarbons (PAHs) issued by US Environmental protection agency are a major focus in atmosphere in previous studies. Many more PAH congeners or their substitutes could be produced during combustion or thermal industrial processes and released into the atmosphere. However, a full screening of various organic pollutants in air surrounding important industrial sources has not been conducted. Identifying and characterizing organic pollutants in air is essential for accurate risk assessment. This study conducted non-target screening of organic pollutants and simultaneous target analysis of emerging contaminants including 8 polychlorinated naphthalenes and 30 higher cyclic halogenated PAHs by high-resolution gas chromatography quadrupole time-of-flight mass spectrometry (GC/Q-TOF-MS) and applied to the air samples collected surrounding metallurgical plants. Emerging organic chemicals of high toxicity in air were identified. Results We identified and characterized 187 organic chemicals categorized as PAHs, alkylated polycyclic aromatic compounds (PACs), heterocyclic PACs, and aliphatic hydrocarbons in atmosphere around industrial sources. Some of these identified chemicals, such as phthalic acid esters, dimethylbenz[a]anthracene, and hydroquinone with alkane substituents are of potential high toxicities and have not been the focus of previous studies of airborne contaminants. Moreover, hydroquinone with alkane substituents may be critical intermediates and precursors of an emerging contaminant-environmentally persistent free radicals. Thus, the presence of those identified highly toxic chemicals in the air merits attention. Moreover, 38 chlorinated and brominated PAHs as target compounds were accurately quantitated by using isotopic dilution method by application of GC/Q-TOF-MS, and the findings were similar to those of high-resolution magnetic mass spectrometry. Conclusion In this study, both non-target screening of organic pollutants and target analysis of halogenated PAHs in air were achieved by GC/Q-TOF-MS. The method could be of significance for simultaneous analysis of those trace pollutants containing multiple congeners. Specific pollutants of potential high toxicity in atmosphere around industrial sources were identified. Those knowledge could be helpful for comprehensively recognizing the organic contaminants in air surrounding metallurgical plants and better understanding their potential health risks. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44750]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yang, Lili,Wu, Jiajia,Zheng, Minghui,et al. Non-target screening of organic pollutants and target analysis of halogenated polycyclic aromatic hydrocarbons in the atmosphere around metallurgical plants by high-resolution GC/Q-TOF-MS[J]. ENVIRONMENTAL SCIENCES EUROPE,2020,32(1):1-16. |
| APA | Yang, Lili.,Wu, Jiajia.,Zheng, Minghui.,Cao, Zhe.,Li, Cui.,...&Liu, Guorui.(2020).Non-target screening of organic pollutants and target analysis of halogenated polycyclic aromatic hydrocarbons in the atmosphere around metallurgical plants by high-resolution GC/Q-TOF-MS.ENVIRONMENTAL SCIENCES EUROPE,32(1),1-16. |
| MLA | Yang, Lili,et al."Non-target screening of organic pollutants and target analysis of halogenated polycyclic aromatic hydrocarbons in the atmosphere around metallurgical plants by high-resolution GC/Q-TOF-MS".ENVIRONMENTAL SCIENCES EUROPE 32.1(2020):1-16. |
入库方式： OAI收割
来源：生态环境研究中心
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