Seasonal and Annual Variations in Atmospheric Hg and Pb Isotopes in Xi'an, China
文献类型：期刊论文
| 作者 | Cao, Junji3; Xu, Hongmei2,3,5; Sonke, Jeroen E.4; Guinot, Benjamin5; Sun, Ruoyu4,6; Fu, Xuewu1,4; Lanzanova, Aurelie4; Candaudap, Frederic4; Shen, Zhenxing2 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017-04-04 |
| 卷号 | 51期号:7页码:3759-3766 |
| DOI | 10.1021/acs.est.6b06145 |
| 文献子类 | Article |
| 英文摘要 | We present a 3-year time series of lead (Pb) and mercury (Hg) concentrations and isotope signatures in total suspended particulate (TSP) matter, and as total gaseous Hg (TGM) in)(fan, Northwestern China. Mean concentrations of TSP (299 +/- 120 mu g m(-3)), Pb-TSP (0.33 +/- 0.15 mu g m(-3)) and: Hg-Tsp. (0.64 +/- 0.54 ng m(-3)), and TGM (5.7 +/- 2.7 ng m(-3)) were elevated. We find that atmospheric Pb levels in winter in Xi'an have decreased by 4.6% per year since 2003, yet remain elevated relative to air quality guidelines and therefore a major health concern. delta Hg-202(Tsp) and Delta Hg-199(Tsp) averaged -0.80 +/- 0.30 parts per thousand (1 sigma) and -0.02 +/- 0.10 parts per thousand (1 sigma) and delta Hg-202(TGM) and Delta Hg-199(TGM) averaged -0.08 +/- 0.41 parts per thousand (10) and 0.00 +/- 0.04 parts per thousand (1 sigma). Relative to raw coal from Shaanxi and surrounding provinces, delta Hg-202(TSP) is enriched in the light Hg isotopes, whereas delta Hg-202(TGM) is enriched in the heavy isotopes. TSP and TGM Delta Hg-199 signatures are indistinguishable from raw coal, indicating little photochemical mass independent fractionation of atmospheric Hg in the near-field urban-industrial environment. delta Hg-202(TGM) correlates significantly with TGM levels (r(2) = 0.3, p < 0.01) and likely reflects binary mixing of local industrial TGM emissions with global background TGM. |
| WOS关键词 | GASEOUS ELEMENTAL MERCURY ; LEADED GASOLINE ; PARTICULATE MATTER ; COAL DEPOSITS ; AMBIENT AIR ; URBAN ; EMISSIONS ; SHANGHAI ; METALS ; RATIOS |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000398646500020 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5490]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China 2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian, Peoples R China 4.Univ Toulouse, CNRS, IRD, Observ Midi Pyrenees,Lab Geosci Environm Toulouse, Toulouse, France 5.Univ Toulouse, CNRS, UPS, Lab Aerol, Toulouse, France 6.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Junji,Xu, Hongmei,Sonke, Jeroen E.,et al. Seasonal and Annual Variations in Atmospheric Hg and Pb Isotopes in Xi'an, China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(7):3759-3766. |
| APA | Cao, Junji.,Xu, Hongmei.,Sonke, Jeroen E..,Guinot, Benjamin.,Sun, Ruoyu.,...&Shen, Zhenxing.(2017).Seasonal and Annual Variations in Atmospheric Hg and Pb Isotopes in Xi'an, China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(7),3759-3766. |
| MLA | Cao, Junji,et al."Seasonal and Annual Variations in Atmospheric Hg and Pb Isotopes in Xi'an, China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.7(2017):3759-3766. |
入库方式： OAI收割
来源：地球环境研究所
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