| 北京市菜地土壤和蔬菜镉含量及其健康风险分析 |
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| 引用本文： | 宋波,陈同斌,郑袁明,黄泽春,郑国砥,罗金发.北京市菜地土壤和蔬菜镉含量及其健康风险分析[J].环境科学学报,2006,26(8):1343-1353. |
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| 作者姓名： | 宋波 陈同斌 郑袁明 黄泽春 郑国砥 罗金发 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所环境修复研究中心,北京,100101;中国科学院研究生院,北京,100039
2. 中国科学院地理科学与资源研究所环境修复研究中心,北京,100101 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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国家自然科学基金 |
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| 摘 要： | 通过对北京市蔬菜和菜地土壤镉含量状况进行大规模调查,研究了蔬菜和土壤镉含量及其健康风险,并筛选出抗镉污染能力强的蔬菜品种.根据蔬菜的消费量同时兼顾品种多样性的原则,在北京市规模化蔬菜栽培基地(采集蔬菜及土壤样品)和蔬菜批发市场(蔬菜样品)共采集97种蔬菜363个样品和54个土壤样品.研究发现:北京市菜地土壤镉积累明显,其范围为0.091～0.971 mg·kg-1,其算术均值和Box-Cox均值分别为0.229和0.187 mg·kg-1,其中有两个样点土壤镉含量(0.971和0.886 mg·kg-1)超过<土壤环境质量标准>(GB15618-1995)中的二级标准(0.6 mg·kg-1);北京市蔬菜镉含量范围、算术均值和Box-Cox均值分别为0.1～101.4、12.8和10.0μg·kg-1;叶菜类和根茎类蔬菜的镉平均含量显著高于瓜果类和特菜;北京市本地产蔬菜与市售外地产蔬菜的镉含量没有显著差异;裸露地蔬菜镉含量显著高于设施蔬菜;小白菜、辣椒、茄子、萝卜和大白菜镉富集系数较高,其抗镉污染能力较弱,而冬瓜、黄瓜、叶甜菜、大葱、云架豆、甘蓝、西红柿等镉富集系数较低,其抗镉污染能力较强.北京市居民每人从蔬菜中摄入镉的量为12 2μg·d-1,蔬菜镉对北京市部分人群存在一定的潜在健康风险.
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| 关 键 词： | 北京市 蔬菜 镉 健康风险 抗污染品种 |
| 文章编号： | 0253-2468(2006)08-1343-11 |
| 收稿时间： | 01 1 2006 12:00AM |
| 修稿时间： | 05 15 2006 12:00AM |
A survey of cadmium concentrations in vegetables and soils in Beijing and the potential risks to human health |
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| SONG Bo,CHEN Tongbin,ZHENG Yuanming,HUANG Zechun,ZHENG Guodi and LUO Jinfa.A survey of cadmium concentrations in vegetables and soils in Beijing and the potential risks to human health[J].Acta Scientiae Circumstantiae,2006,26(8):1343-1353. |
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| Authors: | SONG Bo CHEN Tongbin ZHENG Yuanming HUANG Zechun ZHENG Guodi and LUO Jinfa |
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| Institution: | 1. Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101; 2. Graduate School, Chinese Academy of Sciences, Beijing 100039,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101 and Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101 |
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| Abstract: | |
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| Keywords: | cadmium Beijing vegetables soil bioaccumulation human health risk pollutant-resistant plants |
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