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Temporal variation of speciated atmospheric Hg and characteristics of size-fractioned Hg-P at a suburban site in Shijiazhuang City, North China
Wang, Chunjie; Hui, Fan; Gao, Yu; Wang, Zhangwei; Zhang, Xiaoshan
2021
Source PublicationATMOSPHERIC POLLUTION RESEARCH
Volume12Issue:12Pages:101253
AbstractAtmospheric mercury (Hg) species were determined at a suburban site near Shijiazhuang, China from May 2016 to January 2017 to ascertain their seasonal and diurnal patterns, to identify the relationship with other parameters, and furthermore to elucidate their potential sources areas. The gaseous elemental Hg (GEM) concentration (3.66 +/- 2.62 ng m(-3)) was about 2 times higher than the background level in the Northern Hemisphere, and the fine particulate bound Hg (Hg-2.5(p)) concentration (92.4 +/- 59.6 pg m(-3)) was comparable to those at urban sites, while the gaseous oxidized Hg (GOM) level was quite low (5.7 +/- 5.6 pg m(-3)). GEM and Hg-2.5(p) concentrations exhibit pronounced seasonal (January > May > October > August) and diurnal (nighttime > daytime) patterns. In contrast, the seasonal and diurnal patterns of GOM were just opposite to those of GEM and Hg-2.5(p). The significant positive relationship among GEM, Hg-P, CO, SO2, and NO2 reveals that they have similar anthropogenic sources. Interestingly, the size distributions of Hg P in PM10 were observed to be unimodal during the four study periods, and peaks were all located in the fine mode (0.7-2.1 mu m), and fine Hg P contributed -70% (38.2-81.5%) of Hg-10(P), indicating that the fine mode was the dominant size. The potential source contribution function (PSCF) result suggests that GEM level at the sampling site was highly impacted by regional sources rather than the long-range transport, and the potential source areas were predominantly located in southern Hebei and western Shandong. The results of wind rose and cluster analyses were consistent with the PSCF results.
Department城市与区域生态国家重点实验室
KeywordGaseous elemental mercury Gaseous oxidized mercury Size-fractioned particulate bound mercury Meteorological parameters PSCF and Cluster analyses
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46948
Collection城市与区域生态国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, 18 Shuangqing Rd, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.China Univ Petr, Coll Geosci, 18 Fuxue Rd, Beijing 102249, Peoples R China
4.Moutai Inst, Dept Resource & Environm, Luban Rd, Zunyi 564507, Guizhou, Peoples R China
Recommended Citation
GB/T 7714
Wang, Chunjie,Hui, Fan,Gao, Yu,et al. Temporal variation of speciated atmospheric Hg and characteristics of size-fractioned Hg-P at a suburban site in Shijiazhuang City, North China[J]. ATMOSPHERIC POLLUTION RESEARCH,2021,12(12):101253.
APA Wang, Chunjie,Hui, Fan,Gao, Yu,Wang, Zhangwei,&Zhang, Xiaoshan.(2021).Temporal variation of speciated atmospheric Hg and characteristics of size-fractioned Hg-P at a suburban site in Shijiazhuang City, North China.ATMOSPHERIC POLLUTION RESEARCH,12(12),101253.
MLA Wang, Chunjie,et al."Temporal variation of speciated atmospheric Hg and characteristics of size-fractioned Hg-P at a suburban site in Shijiazhuang City, North China".ATMOSPHERIC POLLUTION RESEARCH 12.12(2021):101253.
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