Articles | Volume 21, issue 20
Atmos. Chem. Phys., 21, 15985–16000, 2021
https://doi.org/10.5194/acp-21-15985-2021
Atmos. Chem. Phys., 21, 15985–16000, 2021
https://doi.org/10.5194/acp-21-15985-2021

Research article 27 Oct 2021

Research article | 27 Oct 2021

Winter ClNO2 formation in the region of fresh anthropogenic emissions: seasonal variability and insights into daytime peaks in northern China

Men Xia et al.

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Significant production of ClNO2 and possible source of Cl2 from N2O5 uptake at a suburban site in eastern China
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Cited articles

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Apodaca, R. L., Huff, D. M., and Simpson, W. R.: The role of ice in N2O5 heterogeneous hydrolysis at high latitudes, Atmos. Chem. Phys., 8, 7451–7463, https://doi.org/10.5194/acp-8-7451-2008, 2008. 
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ClNO2 is an important precursor of chlorine radical that affects photochemistry. However, its production and impact are not well understood. Our study presents field observations of ClNO2 at three sites in northern China. These observations provide new insights into nighttime processes that produce ClNO2 and the significant impact of ClNO2 on secondary pollutions during daytime. The results improve the understanding of photochemical pollution in the lower part of the atmosphere.
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