GYIG OpenIR  > 环境地球化学国家重点实验室
The influence of atmospheric Hg on Hg contaminations in rice and paddy soil in the Xunyang Hg mining district, China
Ming Ao;  Bo Meng;  Atindra Sapkota;  Yonggui Wu;  Xiaoli Qian;  Guangle Qiu;  Shunqing Zhong;  Lihai Shang
2017
发表期刊Acta Geochimica
卷号36期号:2页码:181-189
摘要

To date, the Xunyang mercury (Hg) mining district is the only ongoing large-scale Hg mining district in China. To understand the influence of Hg contamination mode from the Hg mining and smelting activities, 27 sampling sites in the Xunyang Hg mining district were chosen in this study. Total gaseous mercury (TGM) in ambient air was measured using a Lumex-RA915 automatic Hg analyzer in 2011. Rice samples and soil samples from rhizosphere were collected systematically and simultaneously. Total Hg (THg) and methylmercury (MeHg) concentrations in rice grain and soil samples and Hg speciation with modified sequential selective extractions were measured. The local environment was seriously polluted with Hg. The TGM (302 376 ng·m~(-3), ranging from 24 to 2220 ng·m~(-3)) in the local ambient air, THg (28 30 mg·kg~(-1), ranging from 0.31 to 121 mg·kg~(-1)) and MeHg (2.3 1.9 mug·kg~(-1), ranging from 0.24 to 8.9 mug·kg~(-1)) in soil samples were at the sample level with Hg contaminated area. The THg concentration (26 16 mug·kg~(-1) ranging from 4.5 to 71 mug·kg~(-1)) in most of the rice grain samples clearly exceeds the threshold level (20 mug·kg~(-1)) in the Chinese national guidelines for cereals (NY 861-2004). The inorganic mercury (IHg) (9.1 5.6 mug·kg~(-1), ranging from 1.2 to 24 mug·kg~(-1)) and MeHg (14 9.8 mug·kg~(-1), ranging from 2.1 to 59 mug·kg~(-1)) concentration in rice grain samples were at the same level with Hg contaminated area. The main species of Hg in paddy soils reveal strong complex Hg and residue Hg. According to the correlation analysis, a Hg pollution mode from local Hg mining and smelting was hypothesized, including Hg emission, transportation, methylation, and uptake process.

关键词Xunyang Total Gaseous Mercury Mercury Speciation Methylmercury Rice
收录类别EI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/7752
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
2.College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
第一作者单位中国科学院地球化学研究所
通讯作者单位中国科学院地球化学研究所
推荐引用方式
GB/T 7714
Ming Ao;Bo Meng;Atindra Sapkota;Yonggui Wu;Xiaoli Qian;Guangle Qiu;Shunqing Zhong;Lihai Shang. The influence of atmospheric Hg on Hg contaminations in rice and paddy soil in the Xunyang Hg mining district, China[J]. Acta Geochimica,2017,36(2):181-189.
APA Ming Ao;Bo Meng;Atindra Sapkota;Yonggui Wu;Xiaoli Qian;Guangle Qiu;Shunqing Zhong;Lihai Shang.(2017).The influence of atmospheric Hg on Hg contaminations in rice and paddy soil in the Xunyang Hg mining district, China.Acta Geochimica,36(2),181-189.
MLA Ming Ao;Bo Meng;Atindra Sapkota;Yonggui Wu;Xiaoli Qian;Guangle Qiu;Shunqing Zhong;Lihai Shang."The influence of atmospheric Hg on Hg contaminations in rice and paddy soil in the Xunyang Hg mining district, China".Acta Geochimica 36.2(2017):181-189.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
The influence of atm(616KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Ming Ao;Bo Meng;Atindra Sapkota;Yonggui Wu;Xiaoli Qian;Guangle Qiu;Shunqing Zhong;Lihai Shang]的文章
百度学术
百度学术中相似的文章
[Ming Ao;Bo Meng;Atindra Sapkota;Yonggui Wu;Xiaoli Qian;Guangle Qiu;Shunqing Zhong;Lihai Shang]的文章
必应学术
必应学术中相似的文章
[Ming Ao;Bo Meng;Atindra Sapkota;Yonggui Wu;Xiaoli Qian;Guangle Qiu;Shunqing Zhong;Lihai Shang]的文章
相关权益政策
暂无数据
收藏/分享
文件名: The influence of atmospheric Hg on Hg contaminations in rice and paddy soil in the Xunyang Hg mining district, China.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

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。