Speciated atmospheric mercury in the marine boundary layer of the Bohai Sea and Yellow Sea
文献类型：期刊论文
| 作者 | Wang, Chunjie; Ci, Zhijia; Wang, Zhangwei; Zhang, Xiaoshan; Guo, Jia |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2016-04 |
| 卷号 | 131页码:360-370 |
| 关键词 | Gaseous elemental mercury Reactive gaseous mercury Fine particulate mercury Marine boundary layer |
| 英文摘要 | The objectives of this study are to identify the spatial and temporal distributions of gaseous elemental mercury (GEM), reactive gaseous mercury (RGM), and fine particulate mercury (Hg-2.5(P)) in the marine boundary layer (MBL) of the Bohai Sea (BS) and Yellow Sea (YS), and to investigate the relationships between mercury species and meteorological parameters. The mean concentrations of GEM, RGM, and Hg-2.5(P) were 2.03 ng m(-3), 2.5 pg m(-3), and 8.2 pg m(-3) in spring, and 2.09 ng m(-3), 4.3 pg m(-3), and 83 pg m(-3) in fall. Reactive mercury (RGM + Hg-2.5(P)) represented < 1% of total atmospheric mercury (GEM + RGM + Hg-2.5(P)), which indicated that most mercury export in the MBL was GEM and the direct outflow of reactive mercury was very small. Moreover, GEM concentrations over the BS were generally higher than those over the YS both in spring and fall. Although RGM showed a homogeneous distribution over the BS and YS both in spring and fall, the mean RGM concentration in fall was significantly higher than that in spring. In contrast, the spatial distribution of Hg-2.5(P) generally reflected a gradient with high levels near the coast of China and low levels in the open sea, suggesting the significant atmospheric mercury outflow from China. Interestingly, the mean RGM concentrations during daytime were significantly higher than those during nighttime both in spring and fall, while the opposite results were observed for Hg-2.5(P). Additionally, RGM positively correlates with air temperature while negatively correlates with relative humidity. In conclusion, the elevated atmospheric mercury levels in the BS and YS compared to other open seas suggested that the human activities had a significant influence on the oceanic mercury cycle downwind of China. (C) 2016 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35714]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Chunjie,Ci, Zhijia,Wang, Zhangwei,et al. Speciated atmospheric mercury in the marine boundary layer of the Bohai Sea and Yellow Sea[J]. ATMOSPHERIC ENVIRONMENT,2016,131:360-370. |
| APA | Wang, Chunjie,Ci, Zhijia,Wang, Zhangwei,Zhang, Xiaoshan,&Guo, Jia.(2016).Speciated atmospheric mercury in the marine boundary layer of the Bohai Sea and Yellow Sea.ATMOSPHERIC ENVIRONMENT,131,360-370. |
| MLA | Wang, Chunjie,et al."Speciated atmospheric mercury in the marine boundary layer of the Bohai Sea and Yellow Sea".ATMOSPHERIC ENVIRONMENT 131(2016):360-370. |
入库方式： OAI收割
来源：生态环境研究中心
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