|
|||||
|
|
| 珠江广州段鸦岗断面底泥中重金属的生态危害评价 | |
| 引用本文： | 吕文英,周树杰,龚明睿,王新明.珠江广州段鸦岗断面底泥中重金属的生态危害评价[J].环境与健康杂志,2009,26(2). |
| 作者姓名： | 吕文英 周树杰 龚明睿 王新明 |
| 作者单位： | 1. 广东工业大学环境科学与工程学院,广东,广州,510006;中国科学院广州地球化学研究所,广东,广州,510640 2. 广州市环境监测中心站,广东,广州,510030 3. 广东工业大学环境科学与工程学院,广东,广州,510006 4. 中国科学院广州地球化学研究所,广东,广州,510640 |
| 基金项目： | 广东省自然科学基金资助项目(6021477);;广东省科技计划项目(2006B36801002) |
| 摘 要： | 目的为研究镉、铬、铜、铅在珠江广州段的环境影响提供依据。方法于2006年4月在珠江广州段鸦岗断面采集了表层底泥,测定了该断面底泥中的重金属镉、铬、铜、铅的含量,并采用Tessier形态分类法对镉、铬、铜、铅在底泥中的存在形态进行了提取和测定。结果该断面底泥中镉、铬、铜、铅含量分别为2.29、217.97、320.60和124.44 mg/kg,均高于全国湖泊底泥的平均值,分别为广东省土壤背景值的57.25,6.26倍,28.63倍,4.31倍。其中,镉以可交换态为主,占总量比例为55.02%;铬以铁锰态为主,占总量的58.55%;铜以有机态为主,占总量的48.69%;铅以铁￣锰态和残渣态为主,占总量的比例分别32.52%和38.77%。结论依据瑞典学者Hakanson提出的潜在生态危害指数法对该断面底泥中的镉、铬、铜、铅进行了潜在生态危害评价,表明镉潜在生态危害强,铬、铅的潜在生态危害轻微,铜的潜在生态危害中等。 |
| 关 键 词： | 金属 重 底泥 珠江鸦岗断面 生态危害 |
Heavy Metals in Sediment in Yagang Spot of Guangzhou Reach in Pearl River and Its Ecological Risk |
|
| LV Wen-ying,ZHOU Shu-jie,GONG Ming-rui,et al..Heavy Metals in Sediment in Yagang Spot of Guangzhou Reach in Pearl River and Its Ecological Risk[J].Journal of Environment and Health,2009,26(2). | |
| Authors: | LV Wen-ying ZHOU Shu-jie GONG Ming-rui |
| Institution: | LV Wen-ying,ZHOU Shu-jie,GONG Ming-rui,et al.College of Environmental Science , Engineering,Guangdong University of Technology,Guangzhou,Guangdong 510090,China |
| Abstract: | Objective To investigate the contamination of Cd,Pb,Cu and Cr in the sediment of Guangzhou reach in Pearl River.Methods The sediments were collected in Yagang spot in April,2006.The content of heavy metals were determined,the heavy metals in the sediment were extracted with Tessier five stage sequential extraction procedure,and AAS was applied to determine the concentration of heavy metals in the sediment and extracts.Results The level of Cd,Pb,Cu,Cr were 2.29 mg/kg,217.97 mg/kg,320.60 mg/kg and 124.44 mg/k... |
| Keywords: | Metal heavy Sediment Yagang spot of Pearl River Ecological risk |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |