外文翻譯--中國(guó)北京城區(qū)公園表層土壤中重金屬污染評(píng)價(jià)（英文）

1、Assessment of heavy metal pollution in surface soils of urban parks in Beijing, ChinaTong-Bin Chen a,*, Yuan-Ming Zheng a, Mei Lei a, Ze-Chun Huang a, Hong-Tao Wu a, Huang Chen a, Ke-Ke Fan b, Ke Yu c, Xiao Wu b, Qin-Zhe

2、ng Tian ba Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A Datun Road, Beijing 100101, PR China b Middle School Affiliated to People

3、’s University of China, Beijing 100081, PR China c Computing Laboratory, Oxford University, Parks Road, Oxford OX1 3QD, UKReceived 29 March 2004; received in revised form 23 December 2004; accepted 24 December 2004 Avail

4、able online 10 February 2005AbstractAssessing the concentration of potentially harmful heavy metals in the soil of urban parks is imperative in order to evaluate the potential risks to residents and tourists. To date, li

5、ttle research on soil pollution in China?s urban parks has been conducted. To identify the concentrations and sources of heavy metals, and to assess the soil environmental qua- lity, samples were collected from 30 urban

6、parks located in the city of Beijing. Subsequently, the concentrations of Cu, Ni, Pb and Zn in the samples were analyzed. The investigation revealed that the accumulations of Cu and Pb were read- ily apparent in the soil

7、s. The integrated pollution index (IPI) of these four metals ranged from 0.97 to 9.21, with the highest IPI in the densely populated historic center district (HCD). Using multivariate statistic approaches (principal comp

8、onents analysis and hierarchical cluster analysis), two factors controlling the heavy metal variability were obtained, which accounted for nearly 80% of the total variance. Nickel and Zn levels were controlled by parent

9、material in the soils, whereas Cu, Pb and, in part, Zn were accounted for mainly by anthropogenic activities. The findings pre- sented here indicate that the location and the age of the park are important factors in dete

10、rmining the extent of heavy metal, particularly Cu and Pb, pollution. In addition, the accumulation of Zn did not appear to reach pollution levels, and no obvious pollution by Ni was observed in the soils of the parks in

11、 Beijing. ? 2005 Elsevier Ltd. All rights reserved.Keywords: Beijing; Heavy metal; Pollution index; Soil; Urban park1. IntroductionThe mobilization of heavy metals into the biosphere by human activity has become an impor

12、tant process in the geochemical cycling of these metals. This is acutely evident in urban areas where various stationary and mobile sources release large quantities of heavy metals0045-6535/$ - see front matter ? 2005 El

13、sevier Ltd. All rights reserved. doi:10.1016/j.chemosphere.2004.12.072* Corresponding author. Tel.: +86 10 64889080; fax: +86 10 64889303. E-mail address: chentb@igsnrr.ac.cn (T.-B. Chen).Chemosphere 60 (2005) 542–551www

14、.elsevier.com/locate/chemosphereFig. 1. Sampling sites of soils taken from the urban parks. Full names of the parks listed in Table 1.Table 1 Brief description of the parks investigated in BeijingName of parks Abbr. name

15、 District History (years) Location (inside or outside the HCD) Area (ha)Forbidden City GUG Dongcheng 596 Inside 72 Heaven Temple TTP Chongwen 582 Inside 270 Zhongshan Park ZSP Dongcheng 581 Inside 24 Xuanwu Park XWP Xuan

16、wu 538 Inside 7.4 Solar Temple RTP Chaoyang 472 Outside 1 Terra Temple DTP Dongcheng 472 Inside 42.7 Lunar Temple YTP Xicheng 472 Inside 8.1 Taoranting Park TRT Xuanwu 307 Inside 59 Winter Palace YMY Haidian 258 Outside

17、350 Jingshan Park JSP Xicheng 251 Inside 23 Summer Palace YHY Haidian 238 Outside 290.8 Beihai Park BHP Xicheng 206 Inside 71 Beijing Zoo BJZ Xicheng 94 Inside 90 Longtanhu Park LTH Chongwen 50 Inside 120 Honglingjin Par

18、k HLJ Chaoyang 44 Outside 37.5 Liuyin Park LYP Dongcheng 44 Inside 19 Qingnianhu Park QNH Dongcheng 44 Inside 17 Yuyuantan Park YYT Haidian 42 Outside 140.7 Zizhuyuan Park ZZY Haidian 37 Outside 14 Guanyuan Park GYP Xich

19、eng 20 Inside 15 Chaoyang Park CYP Chaoyang 18 Outside 320 Shuangxiu Park SXP Xicheng 18 Inside 6.4 Tuanjiehu Park TJH Chaoyang 16 Outside 13.8 Rendinghu Park RDH Xicheng 16 Inside 9 Fengtai Park FTP Fengtai 16 Outside 2

20、0 Daguan Yuan DGY Xuanwu 16 Inside 13 Beijing Amusement Park BJA Chongwen 15 Inside 40 Wanfangting Park WFT Fengtai 12 Outside 10.6 World Park SJP Fengtai 9 Outside 46.7 Minzu Park MZP Chaoyang 8 Outside 40544 T.-B. Chen