New evidence for atmospheric mercury transformations in the marine boundary layer from stable mercury isotopes
文献类型：期刊论文
| 作者 | Yu, Ben ; Yang, Lin; Wang, Linlin; Liu, Hongwei; Xiao, Cailing; Liang, Yong; Liu, Qian; Yin, Yongguang; Hu, Ligang; Shi, Jianbo
|
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2020-08-19 |
| 卷号 | 20期号:16页码:9713-9723 |
| ISSN号 | 1680-7316 |
| 英文摘要 | The marine boundary layer (MBL) is the largest transport place and reaction vessel of atmospheric mercury (Hg). The transformations of atmospheric Hg in the MBL are crucial for the global transport and deposition of Hg. Herein, Hg isotopic compositions of total gaseous mercury (TGM) and particle-bound Hg (PBM) collected during three cruises to Chinese seas in summer and winter were measured to reveal the transformation processes of atmospheric Hg in the MBL. Unlike the observation results at inland sites, isotopic compositions of TGM in the MBL were affected not only by mixing continental emissions but also largely by the oxidation of Hg-0 primarily derived by Br atoms. Delta Hg-199 values of TGM were significantly positively correlated with air temperature in summer, indicating that processes inducing positive mass-independent fractionation of odd isotopes in TGM could be more active at low temperatures, while the relative processes might be weak in winter. In contrast, the positive Delta Hg-199 and high ratios of Delta Hg-199/Delta Hg-201 in PBM indicated that alternative oxidants other than Br or Cl atoms played a major role in the formation of Hg(II) in PBM, likely following the nuclear volume effect. Our results suggest the importance of local Hg environmental behaviors caused by an abundance of highly reactive species and provide new evidence for understanding the complicated transformations of atmospheric Hg in the MBL. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44747]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yu, Ben,Yang, Lin,Wang, Linlin,et al. New evidence for atmospheric mercury transformations in the marine boundary layer from stable mercury isotopes[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(16):9713-9723. |
| APA | Yu, Ben.,Yang, Lin.,Wang, Linlin.,Liu, Hongwei.,Xiao, Cailing.,...&Jiang, Guibin.(2020).New evidence for atmospheric mercury transformations in the marine boundary layer from stable mercury isotopes.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(16),9713-9723. |
| MLA | Yu, Ben,et al."New evidence for atmospheric mercury transformations in the marine boundary layer from stable mercury isotopes".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.16(2020):9713-9723. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。