| 陕北泥炭中重金属元素丰度及其潜在生态危害 |
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| 引用本文： | 侯晨涛,姚改焕,王英,曾社教.陕北泥炭中重金属元素丰度及其潜在生态危害[J].煤田地质与勘探,2007,35(1):18-20. |
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| 作者姓名： | 侯晨涛 姚改焕 王英 曾社教 |
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| 作者单位： | 西安科技大学地质与环境工程系,陕西,西安,710054;西安科技大学地质与环境工程系,陕西,西安,710054;西安科技大学地质与环境工程系,陕西,西安,710054;西安科技大学地质与环境工程系,陕西,西安,710054 |
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| 摘 要： | 采用原子吸收分光光度计法对陕北榆林地区的孟家湾、河湾、尔林兔3个地区泥炭中的重金属元素进行了分析,并根据Hakanson提出的潜在生态危害指数法对其潜在生态危害性进行了评价。结果表明:Cd元素的含量超过土壤背景值,Cu、Pb、Cr、Mn 4个元素的含量均低于土壤背景值;重金属元素的生态危害指数除Cd较高,属极高水平外,Cu、Pb、Cr、Mn均较低。这3个地区泥炭中的重金属元素生态危害程度为中等以上,且尔林兔>河湾>孟家湾。
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| 关 键 词： | 泥炭 重金属元素 丰度 潜在生态危害 陕北地区 |
| 文章编号： | 1001-1986（2007）01-0018-03 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-06-12 |
Abundance and potential ecological risk of heavy metals in peat of northern Shaanxi |
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| HOU Chen-tao,YAO Gai-huan,WANG Ying,ZENG She-jiao.Abundance and potential ecological risk of heavy metals in peat of northern Shaanxi[J].Coal Geology & Exploration,2007,35(1):18-20. |
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| Authors: | HOU Chen-tao YAO Gai-huan WANG Ying ZENG She-jiao |
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| Institution: | Dept. of Geology and Environmental Engineering, Xi'an University of Science and Technology, Xi'an 710054, China |
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| Abstract: | Adopting adsorption spectrophotometry the heavy metals in peat of Mengjiawan, Hewan and Erlintu in northern Shaanxi were analyzed. Based on these data,the potential ecological risk of heavy metals was assessed by using the method of potential ecological risk index presented by Hakanson. The resalts show that the content of Cd has exceeded national environmental standard. The potential ecological risk index of Cd is very high,while those of Mn,Cu,Cr,Pb are lower than standards. Of three areas,the potential ecological risk of heavy metals of Erlintu is high, Hewan and Mengjiawan are in middle level,having a rule of Erlintu 〉 Hewan 〉 Mengjiawan. |
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| Keywords: | peat heavy metals abundance potential ecological risk northern Shaanxi |
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