中国科学院生态环境研究中心机构知识库
Advanced  
RCEES OpenIR  > 大气环境科学实验室  > 期刊论文
题名: Mercury Redox Chemistry in Waters of the Eastern Asian Seas: From Polluted Coast to Clean Open Ocean
作者: Ci, Zhijia; Zhang, Xiaoshan; Yin, Yongguang; Chen, Jinsheng; Wang, Shiwei
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期: 2016-03-01
卷号: 50, 期号:5, 页码:2371-2380
DOI: 10.1021/acs.est.5b05372
部门归属: 大气环境科学实验室
英文摘要: We performed incubation experiments using seawaters from representative marine environments of the eastern Asian seas to determine the mercury (Hg) available for photoreduction (Hgr(II)), to investigate the Hg redox reaction kinetics, and to explore the effect of environmental factors and water chemistry on the Hg redox chemistry. Results show that Hgr(II) accounted for a considerable fraction of total Hg (THg) (%Hgr(II)/THg: 24.90 +/- 10.55%, n = 27) and positively correlated with THg. Filtration decreased the Hgr(II) pool of waters with high suspended particulate matter (SPM). The positive linear relationships were found between pseudo -first order rate constants of gross Hg(II) photoreduction (kr) and gross Hg(0) photo -oxidation (k(o)) with photosynthetically active radiation (PAR). Under the condition of PAR of 1 m mol m(-2) s(-1), the kr were significantly (p < 0.05) lower than kr, (k(r)/k(o): 0.86 +/- 0.22). The Hg(0) dark oxidation were significantly higher than the Hg(II) dark reduction. The Hg(II) dark reduction was positively correlated to THg, and the anaerobic condition favored the Hg(II) dark reduction. Filtration significantly influenced the Hg photoredox chemistry of waters with high SPM. UVB radiation was important for both Hg(II) photoreduction and Hg(0) photo -oxidation, and the role of other wavebands in photoinduced transformations of Hg varied with the water chemistry.
收录类别: SCI
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35710
Appears in Collections:大气环境科学实验室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Mercury Redox Chemistry in Waters of the Eastern Asian Seas From Polluted Coast to Clean Open Ocean.pdf(741KB)期刊论文作者接受稿开放获取View Download

Recommended Citation:
Ci, Zhijia,Zhang, Xiaoshan,Yin, Yongguang,et al. Mercury Redox Chemistry in Waters of the Eastern Asian Seas: From Polluted Coast to Clean Open Ocean[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016,50(5):2371-2380.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Ci, Zhijia]'s Articles
[Zhang, Xiaoshan]'s Articles
[Yin, Yongguang]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Ci, Zhijia]‘s Articles
[Zhang, Xiaoshan]‘s Articles
[Yin, Yongguang]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Mercury Redox Chemistry in Waters of the Eastern Asian Seas From Polluted Coast to Clean Open Ocean.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院生态环境研究中心 - Feedback
Powered by CSpace