|本期目录/Table of Contents|

[1]张勇,王明猛,康静文,等.夏季红枫湖沉积物汞的形态分布特征及其甲基化关键影响因子[J].江苏农业科学,2017,45(01):258-262.
 Zhang Yong,et al.Morphological distribution characteristics of mercury in sediments of Red Maple Lake in summer and its key factors affecting methylation[J].Jiangsu Agricultural Sciences,2017,45(01):258-262.
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夏季红枫湖沉积物汞的形态分布特征
及其甲基化关键影响因子
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年01期
页码:
258-262
栏目:
资源与环境
出版日期:
2017-01-05

文章信息/Info

Title:
Morphological distribution characteristics of mercury in sediments of Red Maple Lake in summer and its key factors affecting methylation
作者:
张勇1 王明猛1 康静文1 闫海鱼2
1.太原理工大学,山西太原 030024; 2.中国科学院地球化学研究所,贵州贵阳 550081
Author(s):
Zhang Yonget al
关键词:
红枫湖沉积物汞的形态甲基汞影响因子
Keywords:
-
分类号:
TQ132.4+7;X524
DOI:
-
文献标志码:
A
摘要:
为分析夏季红枫湖沉积物中汞形态分布特征以及甲基化过程的关键影响因子,对红枫湖南湖、北湖中3个采样点的表层沉积物样品中总汞、甲基汞、不同结合态汞的含量及有机质、孔隙水中溶解态有机碳(DOC)和阴阳离子的含量等16个环境因子进行系统的分析。结果显示,红枫湖沉积物中生物可利用性汞干质量含量为(2.49±1.05)μg/kg,占总汞比例为0.10%~1.00%;其余为生物不可利用态汞,包括有机结合态和残渣态,其干质量含量分别为(204.47±91.82)(39.72±6.53) μg/kg;样品中甲基汞干质量含量为(1.12±0.94) μg/kg,甲基汞占总汞比例(MeHg/THg)低于1.0%。通过主成分分析方法和多重线性逐步回归方法,建立红枫湖沉积物汞甲基化影响因子模型。结果表明,红枫湖沉积物中汞的甲基化过程主要受2个环境因素影响,一是有机质、DOC、Fe2+、S2-的直接作用,对甲基化的贡献率接近59.0%;二是孔隙水中SO42-的作用,对甲基化的贡献率接近41.0%。因此,影响红枫湖沉积物甲基化的环境因素主要为沉积物中有机质含量,以及孔隙水中DOC、Fe2+、S2-和SO42-浓度。
Abstract:
-

参考文献/References:

[1]Lindqvist O,Johansson K,Bringmark L,et al. Mercury in the Swedish environment-recent research on causes,consequences and corrective methods[J]. Water,Air,and Soil Pollution,1991,55(1/2):1-26.
[2]Liu B,Yan H,Wang C,et al. Insights into low fish mercury bioaccumulation in a mercury-contaminated reservoir,Guizhou,China[J]. Environmental Pollution,2012,160(1):109-117.
[3]Yan H,Li Q,Meng B,et al. Spatial distribution and methylation of mercury in a eutrophic reservoir heavily contaminated by mercury in Southwest China[J]. Applied Geochemistry,2013,33(6):182-190.
[4]Feng X,Bai W,Shang L,et al. Mercury speciation and distribution in Aha Reservoir which was contaminated by coal mining activities in Guiyang,Guizhou,China[J]. Applied Geochemistry,2011,26(2):213-221.
[5]Ullrich S M,Tanton T W,Abdrashitova S A. Mercury in the aquatic environment:a review of factors affecting methylation[J]. Critical Reviews in Environmental Science and Technology,2001,31(3):241-293.
[6]Tsubaki T,Irukayama K. Minamata disease. Methylmercury poisoning in Minamata and Niigata,Japan[M]. Amsterdam:North-Holland Publishing Company,1977.
[7]Bloom N S,Preus E,Katon J,et al. Selective extractions to assess the biogeochemically relevant fractionation of inorganic mercury in sediments and soils[J]. Analytica Chimica Acta,2003,479(2):233-248.
[8]包正铎,王建旭,冯新斌,等. 贵州万山汞矿区污染土壤中汞的形态分布特征[J]. 生态学杂志,2011,30(5):907-913.
[9]Tessier A,Campbell P G C,Bisson M. Sequential extraction procedure for the speciation of particulate trace metals[J]. Analytical Chemistry,1979,51(7):844-851.
[10]冯彩艳,闫海鱼,俞奔,等. 网箱养鱼对水库水体甲基汞的影响[J]. 生态学杂志,2012,31(6):1438-1446.
[11]He T,Li T,Yang R,et al. The impact of sulfate reduction on the distribution of methylmercury in reservoirs in the city of Guiyang[J]. Chinese Journal of Geochemistry,2013,32(1):104-109.
[12]Gray J E,Hines M E. Biogeochemical mercury methylation influenced by reservoir eutrophication,Salmon Falls Creek Reservoir,Idaho,USA[J]. Chemical Geology,2009,258(3):157-167.
[13]何天容,冯新斌,郭艳娜,等. 红枫湖沉积物中汞的环境地球化学循环[J]. 环境科学,2008,29(7):1768-1774.
[14]Feng X,Jiang H,Qiu G,et al. Mercury mass balance study in Wujiangdu and Dongfeng reservoirs,Guizhou,China[J]. Environmental Pollution,2009,157(10):2594-2603.
[15]闫海鱼. 环境样品中不同形态汞的分析方法建立与贵州百花湖汞的生物地球化学循环特征的初步研究 [D]. 贵阳:中国科学院地球化学研究所,2005.
[16]王翠萍,闫海鱼,刘鸿雁,等. 使用 Lumex 测汞仪快速测定固体样品中总汞的方法[J]. 地球与环境,2010 (3):378-382.
[17]阎海鱼,冯新斌,商立海,等. 天然水体中痕量汞的形态分析方法研究[J]. 分析测试学报,2003,22(5):10-13.
[18]黎文,吴丰昌,傅平青,等. 贵州红枫湖水体溶解有机质的剖面特征和季节变化[J]. 环境科学,2006,27(10):1979-1985.
[19]李鸣. 鄱阳湖重金属污染特征研究及环境容量估算[D]. 南昌:南昌大学,2010.
[20]潘鲁生,刘秀伟,石春梅,等. 乌江流域东风水库沉积物中汞及甲基汞的时空分布特征[J]. 地球与环境,2012,40(2):201-207.
[21]Sando S K,Krabbenhoft D P,Johnson K M,et al. Mercury and methylmercury in water and bottom sediments of wetlands at Lostwood National Wildlife Refuge,North Dakota,2003-04[R]. U. S:Geological Survey,2007.
[22]Shi J B,Liang L N,Jiang G B,et al. The speciation and bioavailability of mercury in sediments of Haihe River,China[J]. Environment International,2005,31(3):357-365.
[23]Bloom N S,Gill G A,Cappellino S,et al. Speciation and cycling of mercury in Lavaca Bay,Texas,sediments[J]. Environmental Science & Technology,1999,33(1):7-13.
[24]梁小兵. 汞甲基化细菌研究进展[J]. 生态学杂志,2013,32(3):755-761.
[25]刘金铃,丁振华. 汞的甲基化研究进展[J]. 地球与环境,2007,35(3):215-222.
[26]Korthals E T,Winfrey M R. Seasonal and spatial variations in mercury methylation and demethylation in an oligotrophic lake[J]. Applied and Environmental Microbiology,1987,53(10):2397-2404.
[27]马英军,万国江. 泸沽湖氧化还原边界层的季节性迁移及其对水质的影响[J]. 环境科学学报,2000,20(1):27-27.
[28]赵翔. 我国西南地区酸雨的特征、成因、危害及防治对策建议[J]. 四川工业学院学报,2004,23(4):63-65.

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备注/Memo

备注/Memo:
收稿日期:2015-10-16
基金项目:国家自然科学基金(编号:41273099、40973083)。
作者简介:张勇(1990—),男,山西晋中人,硕士研究生,主要从事湖泊系统中汞污染研究。E-mail:zhangyongwwq@163.com。
通信作者:闫海鱼,博士,研究员,主要从事环境地球化学、汞的生物地球化学循环研究。E-mail:yanhaiyu@vip.skleg.cn。
更新日期/Last Update: 2017-01-05