| Biology and Soil |
|
|
|
|
| Element Characters of River Sediment of Urban Area in Lanzhou City |
| WANG Bo1, XIA Dun-sheng1,2, YU Ye2, TIAN Shi-li2, JIA Jia1 |
1.Ministry of Education Key Laboratory of Western Chinas Environmental System, Lanzhou University, Lanzhou 730000, China;
2.Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
|
|
|
|
Abstract In this study, element concentrations were investigated for 23 deposit samples collected from 8 rivers in Lanzhou urban area. Results indicate that enrichment factor values of Cl, S, P, Bi, Cr, Cu, Pb, Sn, U, W, Zn are all bigger than 2. Analysis of sediment enrichment factor shows a high pollution statue at downstream of Shuimo River and Yuer River. At certain extent, these elements come from artificial factors. The contribution of anthropogenic activities can be divided into 3 types: first is domestic sewage discharge and rain erosion on the ground or the street, and second is industrial pollution such as metallurgical industry, electro-deposition, and third is contribution of elements in soil of sierozem which is a major soil type in local area. Pearson correlation analysis between elements and grain size of river sediment indicates that pollutant always is rich in fine particles.
|
|
Received: 06 May 2011
Published: 20 January 2012
|
|
|
| [1]曲广周,覃英宏,刘亮,等.基于R/S分析黄河及黄土高原主要河流水资源的变化[J].中国沙漠,2010,30（2）:467-470.[2]郑艳,李德生.黄河兰州段水污染现状分析及防治[J].环境科学与管理,2007,32(1):191-194.[3]刘杰,张国珍.黄河兰州段水质污染分析研究[J].人民黄河,2008,30(5):23-24.[4]Chau K W.Persistent organic pollution characterization of sediments in Pearl River estuary[J].Chemosphere,2006,64:1545-1549.[5]Hakanson L.Sediment variability[M]//Burton Jr GA.Sediment Toxicity Assessment.Boca Raton,FL7 Lewis Publishers,1992:19-36.[6]Dauvalter V,Rognerudb S.Heavy metal pollution in sediments of the Pasvik River drainage[J].Chemosphere,2001,42:9-18.[7]中国环境监测总站.中国土壤元素背景值[M].中国环境科学出版社,1990.[8]吴新民,范迪富,华明,等.太仓郊区河流沉积物重金属污染现状及评价[J].地质学刊,2009,33(1):43-47.[9]樊曙先,樊韬,严培君.银川市 PM2.5重金属元素的环境污染特征分析[J].中国沙漠,2006,26(2):291-294.[10]Adami G,Barbieri P,Reisenhofer E.An improved index for monitoring metal pollutants in surface sediments[J].Toxicol Environ Chem,2000,77:189-197.[11]Adamo P,Arienzo M,Imperato M,et al.Distribution and partition of heavy metals in surface and subsurface sediments of Naples city port[J].Chemos Phere,2005,61:800-809.[12]王博,夏敦胜,余晔,等.兰州市城区河道表层沉积物磁性特征研究[J].环境科学,2010,31（8）:41-49.[13]王建云.玉溪市星云湖入湖污染物分布研究初步研究[J].重庆环境科学,2001,23(2):56-61.[14]杨丽萍,陈发虎.兰州市大气降尘污染物来源研究[J].环境科学学报,2002,22（4）:499-502.[15]Siegel F R.Environmental geochemistry of potentially toxic metals[M].Springer,2002.[16]尉元明,潘峰,王静,等.兰州城区TSP 高浓度污染与自然降尘的关系[J].中国沙漠,2006,26（5）:763-766.[17]陶健红,黄玉霞,陆登荣.河西走廊沙尘活动对兰州PM10浓度的影响及其评估[J].中国沙漠,2007,27（4）:672-676.[18]王冠,夏敦胜,陈发虎,等.兰州市街道尘埃的元素空间变化特征研究[J].干旱区资源与环境,2008,22（6）:13-20.[19]王冠,夏敦胜,杨丽萍,等.兰州市街道尘埃元素质量分数季节变化特征[J].兰州大学学报（自然科学版）,2008,44（1）:6-10.[20]毛龙江,莫多闻,周昆叔,等.澧阳平原晚冰期短尺度气候变化的风成沉积物稀土元素和粒度记录[J].中国沙漠,2010,30（2）:267-272.[21]史兴民,师静,万正.耀泾河近代洪水沉积物粒度特征分析[J].中国沙漠,2009,29(2):359-364. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2012, Vol. 32 
