| 南方某工业区周边土壤和蔬菜中铅的健康风险评估 |
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| 引用本文：谭科艳,陈燕芳,汤奇峰,刘久臣,杨永亮.2012.南方某工业区周边土壤和蔬菜中铅的健康风险评估[J].地球学报,33(5):801-806. |
| DOI：10.3975/cagsb.2012.05.11 |
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| 基金项目:国家自然科学基金项目(编号: 41073011);地调工作项目(编号: 1212011120286);国土资源部公益性行业科研专项(编号: 2002350900136);“江西赣南离子型稀土矿开采对生态系统的影响机制和环境修复技术研究”(编号: 201211078-03) |
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| 中文摘要:在南方某城市工业区周边采集了蔬菜样品100个、土壤样品145个, 分析了土壤和蔬菜中铅的含量水平, 对其健康风险进行了评估; 并通过计算富集系数筛选出抗铅污染能力较强的蔬菜品种。研究区土壤中铅累积明显, 共有135个土壤样品中的铅含量超过了二级土壤环境质量标准。蔬菜样品中铅含量范围为1.41～303.10 mg?kg-1, 均超过食品中污染物限量标准, 超标率达到100%。其中, 叶类蔬菜的铅含量明显高于根茎类和瓜果类蔬菜; 瓜果类蔬菜的铅富集系数最低, 抗污染能力最强, 而根茎类和叶类蔬菜对人群健康存在严重的健康风险。 |
| 中文关键词:重金属 铅 生物富集系数 土壤 蔬菜 健康风险 |
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| The Evaluation of Health Risks in Soils and Vegetables around an Industrial Area in South China |
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| Abstract:100 samples of vegetables and 145 samples of soils were collected around an industrial area in south China. Their health risks were evaluated, and high lead pollution-tolerant vegetables were selected through calculating bioconcentration factors (BCF). Lead accumulation in soils was obvious. Lead concentrations of 135 soil samples exceeded the second level of Environmental Quality Standard for Soils promulgated by Chinese Government. Lead concentrations in vegetables were in the range of 1.41–303.10 mg?kg-1. According to Maximum Levels of Contaminants in Foods promulgated by Chinese Government, lead concentrations of all vegetable samples were above the limitation. Lead content of leafy vegetables was higher than that of gourd and fruit vegetables as well as rootstock vegetables. Lead bioconcentration factors of gourd and fruit vegetables were the lowest, while their lead pollution-tolerance was the highest. Rootstalk vegetables and leafy vegetables may pose a serious health risk to local residents. |
| keywords:heavy metal leas bioconcentration factor soil vegetable health risk |
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