| 铬在铁合金厂周边土壤-蔬菜系统中的迁移转化及健康风险 |
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| 引用本文： | 廖映平,王振兴,杨志辉,柴立元,陈建群,袁平夫.铬在铁合金厂周边土壤-蔬菜系统中的迁移转化及健康风险[J].中国有色金属学会会刊,2011,21(11):2520-2527. |
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| 作者姓名： | 廖映平 王振兴 杨志辉 柴立元 陈建群 袁平夫 |
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| 作者单位： | 中南大学冶金科学与工程学院环境研究所;环境保护部华南环境科学研究所;中南大学地球科学与信息物理学院; |
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| 基金项目： | Project (2009ZX07212-001-01) supported by the Key Project of National Natural Science Foundation for Water Pollution Control and Remediation; Project (50925417) supported by the National Funds for Distinguished Young Scientists; Project (50830301) supported by the National Natural Science Foundation of China;Project (51074191) supported by the National Natural Science Foundation of China |
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| 摘 要： | 分析湖南省某铁合金厂附近重金属铬在土壤中的分布及迁移特征,在土壤-植物系统中的迁移转化规律,以及铬污染蔬菜对人体的健康风险。结果表明：铁合金厂外排污口、污灌区和对照区土壤的铬含量平均值分别为2239.5,995.33和104.9mg/kg。总铬在排污口附近土壤中主要富集在地表下200-400mm;在污灌区,主要富集于地表下0-200mm;而在对照区,铬浓度从上至下逐渐降低且各层之间富集浓度相差不大。结果也表明芹菜、莴苣和白菜均能够把土壤中吸收的致毒性较强的六价铬转化成低毒的三价铬,且蔬菜中的铬含量平均值为11.95mg/kg。铬在土壤–蔬菜中的生物富集因子大小依次为：白菜〉莴苣〉芹菜。居民每天摄入的铬含量严重超过食物中最大铬允许摄入量,表明铬污染对当地居民存在一定的健康风险。
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| 关 键 词： | 重金属 铬 迁移 生物富集因子 健康风险 土壤 蔬菜 |
| 收稿时间： | 24 November 2010 |
Migration and transfer of chromium in soil-vegetable system and associated health risks in vicinity of ferro-alloy manufactory |
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| LIAO Ying-ping,WANG Zhen-xing,YANG Zhi-hui,CHAI Li-yuan,CHEN Jian-qun,YUAN Ping-fu.Migration and transfer of chromium in soil-vegetable system and associated health risks in vicinity of ferro-alloy manufactory[J].Transactions of Nonferrous Metals Society of China,2011,21(11):2520-2527. |
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| Authors: | LIAO Ying-ping WANG Zhen-xing YANG Zhi-hui CHAI Li-yuan CHEN Jian-qun YUAN Ping-fu |
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| Affiliation: | LIAO Ying-ping1,WANG Zhen-xing1,2,YANG Zhi-hui1,CHAI Li-yuan1,CHEN Jian-qun3,YUAN Ping-fu1 1.Institute of Environmental Science and Engineering,School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China,2.South China Institute of Environmental Sciences,Ministry of Environmental Protection,Guangzhou 510655,3.School of Geosciences and Info-physics |
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| Abstract: | Study was carried out to analyze the distribution and migration patterns,soil-to-plant transfer and potential health risks of chromium in soil-vegetable system in areas near a ferro-alloy manufactory in Hunan province.The results show that soils near sewer outlet,sewer channel and in control area are averaged 2 239.5,995.33 and 104.9 mg/kg,respectively.The total Cr has a relative accumulation in soil depth of 200-400 mm near the sewer outlet,mainly enriches in the surface layer(0-200 mm) near the sewer chan... |
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| Keywords: | heavy metal chromium migration transfer factor health risk soil vegetable |
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