Occurrence of chlorinated and brominated polycyclic aromatic hydrocarbons from electric arc furnace for steelmaking
文献类型：期刊论文
| 作者 | Yang, Lili ; Shen, Jia; Zheng, Minghui; Yang, Qiuting; Li, Da; Liu, Guorui
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 294期号:0页码:118663 |
| ISSN号 | 0269-7491 |
| 关键词 | INDUSTRIAL STACK GAS FLY-ASH SAMPLES POLYCHLORINATED NAPHTHALENES EMISSIONS PCDD/FS DIOXIN MECHANISMS PROFILES |
| 英文摘要 | Chlorinated and brominated polycyclic aromatic hydrocarbons (Cl/Br-PAHs) are persistent organic pollutants with potential carcinogenic toxicities that are even higher than those of their parent PAH congeners. Current knowledge of Cl/Br-PAH sources and emission characteristics is lacking. Electric arc furnace (EAF) steelmaking is a potential source for Cl/Br-PAHs, considering that preheating of raw materials before they enter the EAF could produce suitable conditions for Cl/Br-PAHs formation. In this field study, we identified EAFs as an important source of Cl/Br-PAHs and clarified their emission concentrations, fingerprints by gas chromatography coupled with high-resolution magnetic mass spectrometry. Potential formation mechanisms of Cl/Br-PAHs were also proposed. The mass concentration ranges for Sigma Cl-18-PAHs and Sigma Br-18-PAHs in stack gas were 25.85-4191 ng Nm(-3) and 1.02-341 ng Nm(-3), respectively. The variation of concentration indicated that the steel scrap composition greatly affected the production of Cl/Br-PAHs. The congener ratios including 6-chlorobenzo [a]pyrene/3-chlorofluoranthene and 1-chloroanthracene/1-chloropyrene could be used to estimate the influence of industrial sources on Cl-PAH occurrences in the air. Ring structure growth was the dominant formation pathway for Cl/BrPAHs, distinctly different from dioxin formation mechanisms dominated by precursor dimerization and chlorination. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47587]  |
| 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 |
| 通讯作者 | Liu, Guorui |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Environm, Hangzhou Inst Adv Study, Hangzhou 310000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Lili,Shen, Jia,Zheng, Minghui,et al. Occurrence of chlorinated and brominated polycyclic aromatic hydrocarbons from electric arc furnace for steelmaking[J]. ENVIRONMENTAL POLLUTION,2022,294(0):118663. |
| APA | Yang, Lili,Shen, Jia,Zheng, Minghui,Yang, Qiuting,Li, Da,&Liu, Guorui.(2022).Occurrence of chlorinated and brominated polycyclic aromatic hydrocarbons from electric arc furnace for steelmaking.ENVIRONMENTAL POLLUTION,294(0),118663. |
| MLA | Yang, Lili,et al."Occurrence of chlorinated and brominated polycyclic aromatic hydrocarbons from electric arc furnace for steelmaking".ENVIRONMENTAL POLLUTION 294.0(2022):118663. |
入库方式： OAI收割
来源：生态环境研究中心
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