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DOI | 10.1016/j.atmosres.2020.104930 |
Vertically decreased VOC concentration and reactivity in the planetary boundary layer in winter over the North China Plain | |
Wu, Shuang1,5; Tang, Guiqian1,2,5; Wang, Yinghong1; Yang, Yang3; Yao, Dan1,2,5; Zhao, Wei1,4; Gao, Wenkang1; Sun, Jie1; Wang, Yuesi1,2,5 | |
2020-08-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 240 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The vertical structure of volatile organic compounds (VOCs) is important to understanding the formation mechanisms of O-3 and secondary organic aerosol (SOA). To explore the vertical evolution characteristics of VOCs, an observational field campaign using a tethered balloon was carried out in Yuanshi County, Shijiazhuang, from January 8 to 16, 2019. Meteorological variables of the planetary boundary layer (PBL) were measured, and 83 VOC samples were collected. The concentrations of 87 compounds and a total of 10 vertical profiles were obtained. The VOC concentration gradually decreased from the surface to 1000 m, decreasing by 34.8% from the surface to 400 m and 11.4% from 400 m to 1000 m. The proportion of alkanes increased from 60.2% to 79.0%; the proportions of alkenes, halohydrocarbons, and acetylene decreased from 11.8%, 12.3%, and 4.2% to 4.5%, 2.8%, and 1.8%, respectively; and the proportion of aromatics changed very little. The vertical evolution of VOCs had responses to different meteorological conditions in the PBL. The concentration decreased slower in a strong convection state than in a stable state. The VOC concentration at night was higher in the stable boundary layer (SBL) (235 +/- 135 ppbv) than in the residual layer (RL) (181 +/- 135 ppbv). The concentration and NO3 loss rate of alkenes decreased in the RL at night, implying that the nighttime SOA formation potential may be weaker in the RL. |
英文关键词 | VOCs Vertical profile PBL SOA |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000527314900021 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; AIR-POLLUTION ; HEALTH-RISK ; INHALATION EXPOSURE ; LOWER TROPOSPHERE ; SOA FORMATION ; HEIGHT ; HYDROCARBONS ; EMISSIONS ; TERRAIN |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/289316 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China; 3.Weather Modificat Off Hebei Prov, Shijiazhuang 050021, Hebei, Peoples R China; 4.Nanjing Univ Informat Sci & Technol, Nanjing 210044, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Shuang,Tang, Guiqian,Wang, Yinghong,et al. Vertically decreased VOC concentration and reactivity in the planetary boundary layer in winter over the North China Plain[J]. ATMOSPHERIC RESEARCH,2020,240. |
APA | Wu, Shuang.,Tang, Guiqian.,Wang, Yinghong.,Yang, Yang.,Yao, Dan.,...&Wang, Yuesi.(2020).Vertically decreased VOC concentration and reactivity in the planetary boundary layer in winter over the North China Plain.ATMOSPHERIC RESEARCH,240. |
MLA | Wu, Shuang,et al."Vertically decreased VOC concentration and reactivity in the planetary boundary layer in winter over the North China Plain".ATMOSPHERIC RESEARCH 240(2020). |
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