Distribution and air-sea exchange of mercury (Hg) in the Yellow Sea
文献类型：期刊论文
| 作者 | Ci, Z. J.1; Zhang, X. S.1; Wang, Z. W.1; Niu, Z. C.1; Diao, X. Y.2; Wang, S. W.2 |
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2011 |
| 卷号 | 11期号:6页码:2881-2892 |
| ISSN号 | 1680-7316 |
| DOI | 10.5194/acp-11-2881-2011 |
| 文献子类 | Article |
| 英文摘要 | The Yellow Sea, surrounded by East China and the Korea Peninsula, is a potentially important receptor for anthropogenic mercury (Hg) emissions from East Asia. However, there is little documentation about the distribution and cycle of Hg in this marine system. During the cruise covering the Yellow Sea in July 2010, gaseous elemental mercury (GEM or Hg(0)) in the atmosphere, total Hg (THg), reactive Hg (RHg) and dissolved gaseous mercury (DGM, largely Hg(0)) in the waters were measured aboard the R/V Kexue III. The mean (+/- SD) concentration of GEM over the entire cruise was 2.61 +/- 0.50 ng m(-3) (range: 1.68 to 4.34 ng m(-3)), which were generally higher than other open oceans. The spatial distribution of GEM generally reflected a clear gradient with high levels near the coast of East China and low levels in open waters, suggesting the significant atmospheric Hg outflow from East China. The mean concentration of THg in the surface waters was 1.69 +/- 0.35 ng l(-1) and the RHg accounted for a considerable fraction of THg (RHg: 1.08 +/- 0.28 ng l(-1), %RHg/THg = 63.9%). The mean concentration of DGM in the surface waters was 63.9 +/- 13.7 pg l(-1) and always suggested the supersaturation of Hg(0) in the surface waters with respect to Hg(0) in the atmosphere (the degree of saturation: 7.8 +/- 2.3 with a range of 3.6-14.0). The mean Hg(0) flux at the air-sea interface was estimated to be 18.3 +/- 11.8 ng m(-2) h(-1) based on a two-layer exchange model. The high wind speed and DGM levels induced the extremely high Hg(0) emission rates. Measurements at three stations showed no clear vertical patterns of DGM, RHg and THg in the water column. Overall, the elevated Hg levels in the Yellow Sea compared with other open oceans suggested that the human activity has influenced the oceanic Hg cycle downwind of East Asia.; The Yellow Sea, surrounded by East China and the Korea Peninsula, is a potentially important receptor for anthropogenic mercury (Hg) emissions from East Asia. However, there is little documentation about the distribution and cycle of Hg in this marine system. During the cruise covering the Yellow Sea in July 2010, gaseous elemental mercury (GEM or Hg(0)) in the atmosphere, total Hg (THg), reactive Hg (RHg) and dissolved gaseous mercury (DGM, largely Hg(0)) in the waters were measured aboard the R/V Kexue III. The mean (+/- SD) concentration of GEM over the entire cruise was 2.61 +/- 0.50 ng m(-3) (range: 1.68 to 4.34 ng m(-3)), which were generally higher than other open oceans. The spatial distribution of GEM generally reflected a clear gradient with high levels near the coast of East China and low levels in open waters, suggesting the significant atmospheric Hg outflow from East China. The mean concentration of THg in the surface waters was 1.69 +/- 0.35 ng l(-1) and the RHg accounted for a considerable fraction of THg (RHg: 1.08 +/- 0.28 ng l(-1), %RHg/THg = 63.9%). The mean concentration of DGM in the surface waters was 63.9 +/- 13.7 pg l(-1) and always suggested the supersaturation of Hg(0) in the surface waters with respect to Hg(0) in the atmosphere (the degree of saturation: 7.8 +/- 2.3 with a range of 3.6-14.0). The mean Hg(0) flux at the air-sea interface was estimated to be 18.3 +/- 11.8 ng m(-2) h(-1) based on a two-layer exchange model. The high wind speed and DGM levels induced the extremely high Hg(0) emission rates. Measurements at three stations showed no clear vertical patterns of DGM, RHg and THg in the water column. Overall, the elevated Hg levels in the Yellow Sea compared with other open oceans suggested that the human activity has influenced the oceanic Hg cycle downwind of East Asia. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000288982300029 |
| 公开日期 | 2012-07-03 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/11660]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Chem & Ecotoxicol, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ci, Z. J.,Zhang, X. S.,Wang, Z. W.,et al. Distribution and air-sea exchange of mercury (Hg) in the Yellow Sea[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2011,11(6):2881-2892. |
| APA | Ci, Z. J.,Zhang, X. S.,Wang, Z. W.,Niu, Z. C.,Diao, X. Y.,&Wang, S. W..(2011).Distribution and air-sea exchange of mercury (Hg) in the Yellow Sea.ATMOSPHERIC CHEMISTRY AND PHYSICS,11(6),2881-2892. |
| MLA | Ci, Z. J.,et al."Distribution and air-sea exchange of mercury (Hg) in the Yellow Sea".ATMOSPHERIC CHEMISTRY AND PHYSICS 11.6(2011):2881-2892. |
入库方式： OAI收割
来源：海洋研究所
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