气候变化领域集成服务门户(CCPortal): Atmospheric Processing of Nitrophenols and Nitrocresols From Biomass Burning Emissions

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DOI	10.1029/2020JD033401
	Atmospheric Processing of Nitrophenols and Nitrocresols From Biomass Burning Emissions
	Wang H.; Gao Y.; Wang S.; Wu X.; Liu Y.; Li X.; Huang D.; Lou S.; Wu Z.; Guo S.; Jing S.; Li Y.; Huang C.; Tyndall G.S.; Orlando J.J.; Zhang X.
发表日期	2020
ISSN	2169897X
卷号	125 期号:22
英文摘要	We present the analysis of the atmospheric budget of nitrophenols and nitrocresols, a class of nitroaromatics that raise great ecosystem and health concerns due to their phytotoxic and genotoxic properties, during the spring wheat harvest season in Eastern China. Significant quantities with maximum concentrations over 100 pptv and distinct diurnal patterns that peak around midnight and maintain low levels throughout the day were observed, in coincidence with the extensive open crop residue burning activities conducted in the vicinity. An observationally constrained zero-dimension box model was constructed to assess the relative importance of various production and removal pathways at play in determining the measured surface concentrations. The NO3-initiated dark chemistry, in concert with meteorological variations predominantly dilution and entrainment, exerts major controls over the observed diurnal behaviors of nitrophenols and nitrocresols. Structural isomerism is predicted to have a significant impact on the multiphase partitioning and chemistry of nitrophenol isomers. Furthermore, simulations show that an appreciable amount of nitrophenols is present in the aerosol water, thereby representing an important source of water-soluble brown carbon in atmospheric aerosols under the humid subtropical weather prevailing during the campaign. Sensitivity analysis performed on the model parameterizations of reaction schemes helps to further understand the chemistry underlying the diurnal cycles. Implementing NO-dependent yields of cresols from toluene photooxidation improves the model predictions of nitrocresols at low NO ranges (<1 ppb), thereby underscoring the complexity of the peroxy radical reaction pathways from toluene photooxidation under atmospheric relevant conditions. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	biomass burning; multiphase partitioning and chemistry; nighttime chemistry; nitrophenol; photolysis and photooxidation; secondary organic aerosols
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185638
作者单位	State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, China; Atmospheric Chemistry Observation and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Department of Atmospheric Sciences, Texas A&M University, College Station, TX, United States; State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China; Department of Life and Environmental Sciences, University of California, Merced, CA, United States
推荐引用方式 GB/T 7714	Wang H.,Gao Y.,Wang S.,et al. Atmospheric Processing of Nitrophenols and Nitrocresols From Biomass Burning Emissions[J],2020,125(22).
APA	Wang H..,Gao Y..,Wang S..,Wu X..,Liu Y..,...&Zhang X..(2020).Atmospheric Processing of Nitrophenols and Nitrocresols From Biomass Burning Emissions.Journal of Geophysical Research: Atmospheres,125(22).
MLA	Wang H.,et al."Atmospheric Processing of Nitrophenols and Nitrocresols From Biomass Burning Emissions".Journal of Geophysical Research: Atmospheres 125.22(2020).