Photolysis frequency of nitrophenols derived from ambient measurements
文献类型：期刊论文
| 作者 | Peng, Yuwen5,6; Yuan, Bin5,6; Yang, Suxia5,6; Wang, Sihang5,6; Yang, Xiaoyun5,6; Wang, Wenjie4; Li, Jin5,6; Song, Xin5,6; Wu, Caihong5,6; Qi, Jipeng5,6 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023 |
| 卷号 | 869页码:161810 |
| 关键词 | VOLATILE ORGANIC-COMPOUNDS ABSORPTION CROSS-SECTIONS NITRATED PHENOLS GAS-PHASE NITROAROMATIC COMPOUNDS CHEMICAL-IONIZATION SECONDARY FORMATION PTR-TOF URBAN OH |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.161810 |
| 英文摘要 | Nitrophenols, a class of important intermediate products from the oxidation of aromatics, can participate in photochemistry and influence the atmospheric oxidative capacity. However, the reported photolysis frequencies of nitrophenols show considerable discrepancies. Here, measurements of nitrophenol, and methyl nitrophenol using a proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS) at both urban and regional sites in southern China are used to constrain photolysis frequencies of nitrophenols. Considerable concentrations with a campaign average of 58 ± 32 ppt for nitrophenol and 97 ± 59 ppt for methyl nitrophenol were observed at the regional site. Based on the in-situ measurement dataset, a steady-state calculation was performed along with a zero-dimensional box model to analyze the budgets of nitrophenols. The result indicates that both primary emission and photolysis have significant impacts on nitrophenols. Primary emission contributes up to 88 % of the total nitrophenols production while photolysis accounts for up to 98 % of the total removal rate. The dominant sink of nitrophenols is photolysis with a rate of about 3.5 % ± 1.3 % of jNO2 for nitrophenol and 2.4 % ± 1.0 % of jNO2 for methyl nitrophenol. The results of this study suggest that using advanced mass spectrometry to accurately measure ambient nitrophenols, supplemented by an observation-based box model for budget analysis, provides an important indication for determining photolysis rate constants of nitrophenols. ? 2023 Elsevier B.V. |
| WOS研究方向 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000925386000001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80238]  |
| 专题 | 有机地球化学国家重点实验室 |
| 作者单位 | 1.School of Environmental Science and Engineering, Qilu University of Technology, Jinan; 250353, China 2.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, China 3.Guangdong Provincial Academy of Environmental Science, Guangzhou; 510045, China 4.Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz; 55128, Germany 5.Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou; 511443, China 6.Institute for Environmental and Climate Research, Jinan University, Guangzhou; 511443, China |
| 推荐引用方式 GB/T 7714 | Peng, Yuwen,Yuan, Bin,Yang, Suxia,et al. Photolysis frequency of nitrophenols derived from ambient measurements[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,869:161810. |
| APA | Peng, Yuwen.,Yuan, Bin.,Yang, Suxia.,Wang, Sihang.,Yang, Xiaoyun.,...&Shao, Min.(2023).Photolysis frequency of nitrophenols derived from ambient measurements.SCIENCE OF THE TOTAL ENVIRONMENT,869,161810. |
| MLA | Peng, Yuwen,et al."Photolysis frequency of nitrophenols derived from ambient measurements".SCIENCE OF THE TOTAL ENVIRONMENT 869(2023):161810. |
入库方式： OAI收割
来源：广州地球化学研究所
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