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Atmospheric Delta O-17(NO3-) reveals nocturnal chemistry dominates nitrate production in Beijing haze

文献类型：期刊论文

作者He, Pengzhen2; Xie, Zhouqing1,2,3; Chi, Xiyuan2; Yu, Xiawei2; Fan, Shidong2; Kang, Hui2; Liu, Cheng1,2,3; Zhan, Haicong2
刊名ATMOSPHERIC CHEMISTRY AND PHYSICS
出版日期2018-10-10
卷号18期号:19页码:14465-14476
ISSN号1680-7316
DOI10.5194/acp-18-14465-2018
通讯作者Xie, Zhouqing(zqxie@ustc.edu.cn)
英文摘要The rapid mass increase of atmospheric nitrate is a critical driving force for the occurrence of fine-particle pollution (referred to as haze hereafter) in Beijing. However, the exact mechanisms for this rapid increase of nitrate mass have not been well constrained from field observations. Here we present the first observations of the oxygen-17 excess of atmospheric nitrate (Delta O-17(NO3-)) collected in Beijing haze to reveal the relative importance of different nitrate formation pathways, and we also present the simultaneously observed delta N-15(NO3-). During our sampling period, 12h averaged mass concentrations of PM2.5 varied from 16 to 323 mu g m(-3) with a mean of (141 +/- 88(1SD)) mu g m(-3), with nitrate ranging from 0.3 to 106.7 mu g m(-3). The observed Delta O-17(NO3-) ranged from 27.5 %0 to 33.9 %0 with a mean of (30.6 +/- 1.8)%0, while delta N-15(NO3-) ranged from -2.5 %0 to 19.2 %0 with a mean of (7.4 +/- 6.8)%0. Delta O-17(NO3-)-constrained calculations suggest nocturnal pathways (N2O5 + H2O/Cl- and NO3 + HC) dominated nitrate production during polluted days (PM2.5 >= 75 mu g m(-3)), with a mean possible fraction of 56-97 %. Our results illustrate the potentiality of Delta(17) in tracing nitrate formation pathways; future modeling work with the constraint of isotope data reported here may further improve our understanding of the nitrogen cycle during haze.
WOS关键词OXYGEN ISOTOPIC COMPOSITION ; OZONE DEPLETION EVENTS ; MARINE BOUNDARY-LAYER ; NORTH CHINA PLAIN ; NITROUS-ACID HONO ; HETEROGENEOUS REACTION ; PARTICULATE NITRATE ; COASTAL ANTARCTICA ; ANOMALY DELTA-O-17 ; SEASONAL-VARIATION
资助项目National Key Project of MOST[2016YFC0203302] ; NSFC[91544013] ; Key Project of CAS[KJZD-EW-TZ-G06-01] ; Atmospheric Pollution Control of the Prime Minister[DQGG0104]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000446919300002
出版者COPERNICUS GESELLSCHAFT MBH
资助机构National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; National Key Project of MOST ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Key Project of CAS ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister ; Atmospheric Pollution Control of the Prime Minister
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39463]  
专题中国科学院合肥物质科学研究院
通讯作者Xie, Zhouqing
作者单位1.Chinese Acad Sci, Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Fujian, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 He, Pengzhen,Xie, Zhouqing,Chi, Xiyuan,et al. Atmospheric Delta O-17(NO3-) reveals nocturnal chemistry dominates nitrate production in Beijing haze[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(19):14465-14476.
APA He, Pengzhen.,Xie, Zhouqing.,Chi, Xiyuan.,Yu, Xiawei.,Fan, Shidong.,...&Zhan, Haicong.(2018).Atmospheric Delta O-17(NO3-) reveals nocturnal chemistry dominates nitrate production in Beijing haze.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(19),14465-14476.
MLA He, Pengzhen,et al."Atmospheric Delta O-17(NO3-) reveals nocturnal chemistry dominates nitrate production in Beijing haze".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.19(2018):14465-14476.

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来源：合肥物质科学研究院

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