Mixing state and influence factors controlling diurnal variation of particulate nitrophenol compounds at a suburban area in northern China*
文献类型：期刊论文
| 作者 | Guo, Ziyong3,4,5; Hu, Xiaodong4,5; Sun, Wei4,5; Peng, Xiaocong4,5; Fu, Yuzhen4,5; Liu, Kun4,5; Liu, Fengxian2; Meng, He1; Zhu, Yujiao7; Zhang, Guohua4,5,6
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| 刊名 | ENVIRONMENTAL POLLUTION
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| 出版日期 | 2024-03-01 |
| 卷号 | 344页码:10 |
| 关键词 | Nitrophenol SPAMS Diurnal variation Mixing state Atmospheric process Brown carbon |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2024.123368 |
| 英文摘要 | Nitrophenols have received extensive attention due to their strong light-absorbing ability in the near-ultravioletvisible region, which could be influenced by the atmospheric processes of nitrophenols. However, our knowledge and understanding of the formation and evolution of nitrophenols are still in the nascent stages. In the present study, the mixing states of four mononitrophenol particles (i.e., nitrophenol, methynitrophenol, nitrocatechol, and methoxynitrophenol), and one nitropolycyclic aromatic hydrocarbon particles (i.e., nitronaphthol (NN)) were investigated using a single-particle aerosol mass spectrometer (SPAMS) in November 2019 in Qingdao, China. The results showed, for the first time, that mononitrophenols and NN exhibit different mixing states and diurnal variations. Four mononitrophenols were internally mixed well with each other, and with organic acids, nitrates, potassium, and naphthalene. The diurnal variation in the number fraction of mononitrophenols presented two peaks at 07:00 to 09:00 and 18:00 to 20:00, and a valley at noon. Atmospheric environmental conditions, including NO2, O3, relative humidity, and temperature, can significantly influence the diurnal variation of mononitrophenols. Multiple linear regression and random forest regression models revealed that the main factors controlling the diurnal variation of mononitrophenols were photochemical reactions during the day and aqueous-phase reactions during the night. Unlike mononitrophenols, about 62-83% of NN were internally mixed with [NH4]+ and [H(NO3)2]-, but not with organic acids and potassium. The diurnal variation of NN was also different from that of mononitrophenols, generally increased from 17:00 to 10:00 and then rapidly decreaed from 11:00 to 16:00. These results imply that NN may have sources and atmospheric processes that are different from mononitrophenols. We speculate that this is mostly controlled by photochemical reactions and mixing with [NH4]+, which may influence the diurnal variation of NN in the ambient particles; however, this requires further confirmation. These findings extend our current understanding of the atmospheric formation and evolution of nitrophenols. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001175444500001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77239]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Bi, Xinhui |
| 作者单位 | 1.Qingdao Ecoenvironm Monitoring Ctr Shandong Prov, Qingdao 266003, Peoples R China 2.Taiyuan Univ Technol, Sch Econ & Management, Taiyuan 030024, Peoples R China 3.Taiyuan Univ Technol, Coll Environm Sci & Engn, Taiyuan 030024, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Guangdong, Peoples R China 7.Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Ziyong,Hu, Xiaodong,Sun, Wei,et al. Mixing state and influence factors controlling diurnal variation of particulate nitrophenol compounds at a suburban area in northern China*[J]. ENVIRONMENTAL POLLUTION,2024,344:10. |
| APA | Guo, Ziyong.,Hu, Xiaodong.,Sun, Wei.,Peng, Xiaocong.,Fu, Yuzhen.,...&Bi, Xinhui.(2024).Mixing state and influence factors controlling diurnal variation of particulate nitrophenol compounds at a suburban area in northern China*.ENVIRONMENTAL POLLUTION,344,10. |
| MLA | Guo, Ziyong,et al."Mixing state and influence factors controlling diurnal variation of particulate nitrophenol compounds at a suburban area in northern China*".ENVIRONMENTAL POLLUTION 344(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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