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Secondary Production of Gaseous Nitrated Phenols in Polluted Urban Environments
Cheng, Xi1; Chen, Qi1; Li, Yongjie2; Huang, Guancong1; Liu, Ying1; Lu, Sihua1; Zheng, Yan1; Qiu, Wanyi1; Lu, Keding1; Qiu, Xinghua1; Bianchi, Federico3; Yan, Chao3,4; Yuan, Bin5; Shao, Min1,5; Wang, Zhe6; Canagaratna, Manjula R.7; Zhu, Tong1; Wu, Yusheng1; Zeng, Limin1
Source PublicationEnvironmental Science and Technology
ABS Journal Level3

Nitrated phenols (NPs) are important atmospheric pollutants that affect air quality, radiation, and health. The recent development of the time-of-flight chemical ionization mass spectrometer (ToF-CIMS) allows quantitative online measurements of NPs for a better understanding of their sources and environmental impacts. Herein, we deployed nitrate ions as reagent ions in the ToF-CIMS and quantified six classes of gaseous NPs in Beijing. The concentrations of NPs are in the range of 1 to 520 ng m-3. Nitrophenol (NPh) has the greatest mean concentration. Dinitrophenol (DNP) shows the greatest haze-to-clean concentration ratio, which may be associated with aqueous production. The high concentrations and distinct diurnal profiles of NPs indicate a strong secondary formation to overweigh losses, driven by high emissions of precursors, strong oxidative capacity, and high NOx levels. The budget analysis on the basis of our measurements and box-model calculations suggest a minor role of the photolysis of NPs (<1 ppb h-1) in producing OH radicals. NPs therefore cannot explain the underestimated OH production in urban environments. Discrepancies between these results and the laboratory measurements of the NP photolysis rates indicate the need for further studies aimed at understanding the production and losses of NPs in polluted urban environments.

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Indexed BySCIE
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000643546400022
Scopus ID2-s2.0-85104923559
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Cited Times [WOS]:14   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
Corresponding AuthorChen, Qi
Affiliation1.State Key Joint Laboratory of Environmental Simulation and Pollution Control, BIC-ESAT and Ijrc, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
2.Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, 999078, Macao
3.Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
4.Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
5.Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, China
6.Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong
7.Aerodyne Research Inc., Billerica, 01821, United States
Recommended Citation
GB/T 7714
Cheng, Xi,Chen, Qi,Li, Yongjie,et al. Secondary Production of Gaseous Nitrated Phenols in Polluted Urban Environments[J]. Environmental Science and Technology,2021,55(8):4410-4419.
APA Cheng, Xi,Chen, Qi,Li, Yongjie,Huang, Guancong,Liu, Ying,Lu, Sihua,Zheng, Yan,Qiu, Wanyi,Lu, Keding,Qiu, Xinghua,Bianchi, Federico,Yan, Chao,Yuan, Bin,Shao, Min,Wang, Zhe,Canagaratna, Manjula R.,Zhu, Tong,Wu, Yusheng,&Zeng, Limin.(2021).Secondary Production of Gaseous Nitrated Phenols in Polluted Urban Environments.Environmental Science and Technology,55(8),4410-4419.
MLA Cheng, Xi,et al."Secondary Production of Gaseous Nitrated Phenols in Polluted Urban Environments".Environmental Science and Technology 55.8(2021):4410-4419.
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