Measurement of HONO flux using the aerodynamic gradient method over an agricultural field in the Huaihe River Basin, China
文献类型：期刊论文
| 作者 | Meng, Fanhao4,5; Qin, Min5 ; Fang, Wu5; Duan, Jun5; Tang, Ke4,5; Zhang, Helu4,5; Shao, Dou4,5; Liao, Zhitang4,5; Feng, Yan2,3; Huang, Yong2,3
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
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| 出版日期 | 2022-04-01 |
| 卷号 | 114 |
| 关键词 | Aerodynamic gradient method HONO flux Huaihe River Basin Agricultural field |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/j.jes.2021.09.005 |
| 通讯作者 | Qin, Min(mqin@aiofm.ac.cn) |
| 英文摘要 | To investigate nitrous acid (HONO) levels and potential HONO sources above crop rotation fields. The HONO fluxes were measured by the aerodynamic gradient (AG) method from 14 December 2019 to 2 January 2020 over an agricultural field in the Huaihe River Basin. The ambient HONO levels were measured at two different heights (0.15 and 1.5 m), showing a typical diurnal cycle with low daytime levels and high nighttime levels. The upward HONO fluxes were mostly observed during the day, whereas deposition dominated at night. The diurnal variation of HONO flux followed solar radiation, with a noontime maximum of 0.2 nmol/(m 2 .sec). The average upward HONO flux of 0.06 ?? 0.17 nmol/(m 2 .sec) indicated that the agricultural field was a net source for atmospheric HONO. The higher HONO/NO 2 ratio and NO 2 -to-HONO conversion rate close to the surface suggested that nocturnal HONO was formed and released near the ground. The unknown HONO source was derived from the daytime HONO budget analysis, with an average strength of 0.31 ppbV/hr at noontime. The surface HONO flux, which was highly correlated with the photolysis frequency J (NO 2 ) ( R 2 = 0.925) and the product of J (NO 2 ) x NO 2 ( R 2 = 0.840), accounted for -23% of unknown daytime HONO source. The significant correlation between HONO fluxes and J (NO 2 ) suggests a light-driven HONO formation mechanism responsible for the surface HONO flux during daytime. |
| WOS关键词 | NITROUS-ACID HONO ; BOUNDARY-LAYER ; DAYTIME SOURCE ; ATMOSPHERIC CHEMISTRY ; VERTICAL PROFILES ; MIXING-RATIO ; RURAL SITE ; HUMIC-ACID ; URBAN SITE ; SOIL |
| 资助项目 | National Natural Science Foundation of China[41875154] ; National Natural Science Foundation of China[U19A2044] ; National Natural Science Foundation of China[91544104] ; Anhui Provincial Key RD Program[202104i07020010] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000798822800010 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; Anhui Provincial Key RD Program |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131145]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Qin, Min |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 2.Shouxian Natl Climatol Observ, Huaihe River Basin Typ Farm Ecometeorol Expt Fiel, Shouxian 232200, Peoples R China 3.Anhui Inst Meteorol Sci, Anhui Prov Key Lab Atmospher Sci & Satellite Remo, Hefei 230031, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Peoples R China 5.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Fanhao,Qin, Min,Fang, Wu,et al. Measurement of HONO flux using the aerodynamic gradient method over an agricultural field in the Huaihe River Basin, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,114. |
| APA | Meng, Fanhao.,Qin, Min.,Fang, Wu.,Duan, Jun.,Tang, Ke.,...&Liu, Wenqing.(2022).Measurement of HONO flux using the aerodynamic gradient method over an agricultural field in the Huaihe River Basin, China.JOURNAL OF ENVIRONMENTAL SCIENCES,114. |
| MLA | Meng, Fanhao,et al."Measurement of HONO flux using the aerodynamic gradient method over an agricultural field in the Huaihe River Basin, China".JOURNAL OF ENVIRONMENTAL SCIENCES 114(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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