Reactivity and Loss Mechanisms of NO3 and N2O5 at a Rural Site on the North China Plain
Reactivity and Loss Mechanisms of NO3 and N2O5 at a Rural Site on the North China Plain
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华北平原农村场地NO3和N2O5的反应性和损失机制
DOI：
10.3390/atmos13081268
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发表时间：
2022-08
期刊：
影响因子：
2.9
通讯作者：
Huawei Jin
中科院分区：
文献类型：
--
作者：
Dan Wang;Pinhua Xie;Renzhi Hu;Zhiyan Li;Hao Chen;Huawei Jin
NO3, NO2, O3, and relevant parameters were measured at a rural site on the North China Plain during June 2014. During the campaign, the average concentrations of NO3 and N2O5 were 4.8 ± 3.3 pptv and 30.5 ± 35.4 pptv, respectively. The average NO3 production rate was 1.03 ± 0.48 ppbvh−1, and the steady-state lifetimes of NO3 and N2O5 were 26 s and 162 s, respectively, indicating that the NOx chemistry in the rural site during summer was active. The uptake coefficient range of N2O5 was 0.023 to 0.118, with an average value of 0.062 ± 0.035. Meanwhile, the fitting for kNO3 was 0.013 ± 0.016 s−1, corresponding to the shorter NO3 lifetime below 1 min. The results show that the indirect loss pathways caused by the heterogonous uptake of N2O5 contributed 64–90% of the overall NO3 loss, with an average of 81%, suggesting that the N2O5 heterogeneous reaction dominated the nocturnal NOx loss over this region.
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DOI：
10.1016/j.scitotenv.2017.11.352
发表时间：
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期刊：
The Science of the total environment
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