南盘江流域(云南段)水系沉积物中重金属含量分布特征及其污染状况评价
Distribution and Pollution Evaluation of Heavy Metals in Sediments in the Nanpan River Basin (Yunnan Section)
查看参考文献27篇
文摘
|
为了查明南盘江流域(云南段)水系沉积物中重金属的含量分布特征和污染程度,系统采集了流域内水系沉积物25个,运用电感耦合等离子体质谱仪分析沉积物中重金属含量。利用地球化学方法和统计学方法,对该流域水系沉积物中重金属含量、空间分布特征与元素相关性等方面进行探讨和分析;采用富集因子、地累积指数和污染负荷指数等综合指标,评估南盘江流域水系沉积物的污染程度和厘定流域主要的重金属污染元素。结果表明,南盘江流域内普遍富集Cd,上游富集Cr和As,中游富集Pb和Sb,下游富集Sb。中游处泸江支流汇入,显著影响了南盘江干流沉积物中重金属分布。流域内有色金属硫化物矿床遍布、采冶工矿企业众多,金属硫化物的自然风化和矿业活动是该流域部分河段水系沉积物中重金属富集的主要来源。南盘江流域(云南段)存在一定程度的重金属污染,且不同河段重金属污染程度差异大,表现为中游>上游>下游。流域内主要污染贡献元素为Cd和As,Sb和Cr次之,Zn、Pb和Cu的污染程度较轻。 |
其他语种文摘
|
In order to reveal the distribution characteristics of heavy metals in the Nanpan River Basin(Yunnan section), twenty-five sediment samples were collected. Contents of trace metal in sediments were determined by using inductively coupled plasma mass spectrometry(ICP-MS).Geochemical and statistic methods were applied to analyze the spatial distribution and correlation of heavy metals in sediments of the Nanpan River. Degree of contamination and major pollutant elements in the Nanpan River basin were assessed by using enrichment factor(EF), pollution loading index(PLI)and index of geo-accumulation(I_(geo)). Results show that the enrichment degree of heavy metal elements in sediments of the Nanpan River are followed the order of Cd>As>Cr>Pb>Sb>Zn>Cu. Cadmium is riched in the whole Nanpan River basin, while the upper reaches are enriched in Cr and As; the middle reaches are enriched in Pb and Sb; and the lower reaches are enriched in Sb. Lujiang tributary in the middle reaches significantly influences the distribution of elements in sediments of the Nanpan River. Due to nonferrous metal sulfide deposits, mining and smelting factories are located throughout the Nanpan River Basin. Potential sources of heavy metals in sediments of the Nanpan River basin might be the weathering of sulfide and mining/smelting activities. The Nanpan River Basin(Yunnan section)is polluted by heavy metals, and its pollution degree varies from different reaches(middle reaches>upper reaches>lower reaches). Among the major contamination elements in the Nanpan River, Cd and As occupy the first place; Sb and Cr rank the second; while Pb, Zn and Cu take the third place. |
来源
|
地球与环境
,2017,45(2):171-178 【核心库】
|
DOI
|
10.14050/j.cnki.1672-9250.2017.02.008
|
关键词
|
重金属
;
水系沉积物
;
空间分布
;
污染评价
;
南盘江
|
地址
|
1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550081
2.
珠江流域水资源监测中心, 广州, 510611
|
语种
|
中文 |
文献类型
|
研究性论文 |
ISSN
|
1672-9250 |
学科
|
环境科学基础理论 |
基金
|
水利部公益性行业科研专项
;
国家环境保护公益性行业科研专项
|
文献收藏号
|
CSCD:5962305
|
参考文献 共
27
共2页
|
1.
Sebela S. Natural and anthropogenic influences on the year round temperature dynamics of air and water in Postojna show cave, Slovenia.
Tourism Management,2014,40:233-243
|
被引
4
次
|
|
|
|
2.
Liu Y Z. High cadmium concentration in soil in the Three Gorges region: Geogenic source and potential bioavailability.
Applied Geochemistry,2013,37:149-156
|
被引
11
次
|
|
|
|
3.
杨刚. 西南山地铅锌矿区耕地土壤和谷类产品重金属含量及健康风险评价.
环境科学学报,2011,9(31):2014-2021
|
被引
2
次
|
|
|
|
4.
郭伟. 内蒙古包头铁矿区土壤重金属污染特征及其评价.
环境科学,2011,10(32):3099-3105
|
被引
2
次
|
|
|
|
5.
Kapusta P. Effects of heavy metal pollution from mining and smelting on enchytraeid communities under different land management and soil conditions.
Science of the Total Environment,2015,536:517-526
|
被引
2
次
|
|
|
|
6.
Liaghati T. Heavy metal distribution and controlling factors within coastal plain sediments, Bells Creek catchment, southeast Queensland, Australia.
Environment International,2004,29(7):935-948
|
被引
19
次
|
|
|
|
7.
Zhuang W. Distributions, sources and ecological risk assessment of arsenic and mercury in the surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea.
Marine Pollution Bulletin,2015,99(1/2):320-327
|
被引
5
次
|
|
|
|
8.
Zhang R. Historical trends in the anthropogenic heavy metal levels in the tidal flat sediments of Lianyungang, China.
Journal of Environmental Sciences,2013,25(7):1458-1468
|
被引
5
次
|
|
|
|
9.
Qing X. Assessment of heavy metal pollution and human health risk in urban soils of steel industrial city(Anshan), Liaoning, Northeast China.
Ecotoxicology and Environmental Safety,2015,120:377-385
|
被引
10
次
|
|
|
|
10.
Zhao H. Index models to evaluate the potential metal pollution contribution from washoff of road deposited sediment.
Water Research,2014,59:71-79
|
被引
4
次
|
|
|
|
11.
Selvam A P. Heavy metal assessment using geochemical and statistical tools in the surface sediments of Vembanad Lake, Southwest Coast of India.
Environmental Monitoring and Assessment,2012,184(10):5899-5915
|
被引
6
次
|
|
|
|
12.
胡涛. 南盘江水体中重金属特征污染物及控制断面的筛选.
环境科学导刊,2013,32(S1):56-58
|
被引
1
次
|
|
|
|
13.
荆春燕. 南盘江流域水污染控制研究.
云南环境科学,2002,21(2):24-25
|
被引
2
次
|
|
|
|
14.
王海鹰. 南盘江上游生态环境现状及其保护.
云南环境科学,1997,16(2):16-18
|
被引
1
次
|
|
|
|
15.
夏宁宁. 南盘江云南省出境断面20年水质监测结果及回顾评价.
环境科学导刊,2014,33(4):70-71
|
被引
1
次
|
|
|
|
16.
李保欣. 南盘江污染治理触探.
人民珠江,1997,4:47-48
|
被引
1
次
|
|
|
|
17.
张宏. 曲靖市境内南盘江水质变化趋势及影响因素分析.
环境科学导刊,2013,32(4):59-63
|
被引
2
次
|
|
|
|
18.
姜安源. 环境污染现状分析及环境保护对策.
地域研究与开发,1997,16:107-111
|
被引
1
次
|
|
|
|
19.
Zhang Z. Sources identification and pollution evaluation of heavy metals in the surface sediments of Bortala River, Northwest China.
Ecotoxicology and Environmental Safety,2016,126:94-101
|
被引
10
次
|
|
|
|
20.
陶文东. 南盘江上游水污染综合防治规划研究.
云南环境科学,1997,16(1):38-41
|
被引
1
次
|
|
|
|
|