气候变化领域集成服务门户(CCPortal): N2O5 uptake onto saline mineral dust: a potential missing source of tropospheric ClNO2 in inland China

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DOI	10.5194/acp-22-1845-2022
	N2O5 uptake onto saline mineral dust: a potential missing source of tropospheric ClNO2 in inland China
	Wang, Haichao; Peng, Chao; Wang, Xuan; Lou, Shengrong; Lu, Keding; Gan, Guicheng; Jia, Xiaohong; Chen, Xiaorui; Chen, Jun; Wang, Hongli; Fan, Shaojia; Wang, Xinming; Tang, Mingjin
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	1845
结束页码	1859
卷号	22 期号:3 页码:15
英文摘要	Nitryl chloride (ClNO2), an important precursor of Cl atoms, significantly affects atmospheric oxidation capacity and O-3 formation. However, sources of ClNO2 in inland China have not been fully elucidated. In this work, laboratory experiments were conducted to investigate heterogeneous reactions of N2O5 with eight saline mineral dust samples collected from different regions in China, and substantial formation of ClNO2 was observed in these reactions. ClNO2 yields, phi (ClNO2), showed large variations (ranging from < 0.05 to similar to 0.77) for different saline mineral dust samples, depending on mass fractions of particulate chloride. In addition, phi(ClNO2) could increase, decrease or show insignificant change for different saline mineral dust samples when relative humidity (RH) increased from 18% to 75 %. We further found that current parameterizations significantly overestimated phi(ClNO2) for heterogeneous uptake of N2O5 onto saline mineral dust. In addition, assuming a uniform phi(ClNO2) value of 0.10 for N2O5 uptake onto mineral dust, we used a 3-D chemical transport model to assess the impact of this reaction on tropospheric ClNO2 in China and found that weekly mean nighttime maximum ClNO2 mixing ratios could have been increased by up to 85 pptv during a severe dust event in May 2017. Overall, our work showed that heterogeneous reaction of N2O5 with saline mineral dust could be an important source of tropospheric ClNO2 in inland China.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000758043600001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273690
作者单位	Sun Yat Sen University; Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; City University of Hong Kong; Peking University; University of Shanghai for Science & Technology; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai); Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Wang, Haichao,Peng, Chao,Wang, Xuan,et al. N2O5 uptake onto saline mineral dust: a potential missing source of tropospheric ClNO2 in inland China[J],2022,22(3):15.
APA	Wang, Haichao.,Peng, Chao.,Wang, Xuan.,Lou, Shengrong.,Lu, Keding.,...&Tang, Mingjin.(2022).N2O5 uptake onto saline mineral dust: a potential missing source of tropospheric ClNO2 in inland China.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(3),15.
MLA	Wang, Haichao,et al."N2O5 uptake onto saline mineral dust: a potential missing source of tropospheric ClNO2 in inland China".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.3(2022):15.