四川地区低镉富集蔬菜品种分析及安全性评估
|
摘要
选取四川地区常用的5大类46种蔬菜品种,分别种植在镉超限和镉未超限土壤中,测定可食部分的镉含量,分析不同蔬菜类型的镉富集能力,探讨其食用安全性,为镉污染土壤中蔬菜种植规划提供支持。结果表明,不同类型蔬菜对重金属的富集能力顺序为:叶菜类>茄果类>根茎类>瓜类>豆类。在镉含量较高的土壤中应避免种植叶菜类中高镉富集型蔬菜品种,建议种植豆类和瓜类低镉富集型蔬菜品种。对普通人群而言,在土壤镉超限[土壤镉含量<0.977±0.090 mg/kg]区域内,摄入蔬菜量442.8g/d以下通过食用蔬菜而摄入的镉含量是相对安全的。
The 45 cultivated varieties of vegetables were planted in cadmium(Cd)-over standard soil and no cadmium-over standard soil to analyze the Cd collection capacity in different varieties of vegetables and eating safety.The results showed that the sequence of Cd collection capacity was that leaf vegetables > solanberry vegetables > rhizome vegetables > melon vegetables > bean vegetables.The low Cd collection capacity vegetables such as leaf vegetables should be planted in Cd-over standard area.On average,the residents of cadmium-over standard[Cd <(0.977 ± 0.090) mg/kg]ingest 43.59 μg/d in sumner and 14.99 μg/d in winter per person through this study varieties,which did not pose any health risk to common people.
The 45 cultivated varieties of vegetables were planted in cadmium(Cd)-over standard soil and no cadmium-over standard soil to analyze the Cd collection capacity in different varieties of vegetables and eating safety.The results showed that the sequence of Cd collection capacity was that leaf vegetables > solanberry vegetables > rhizome vegetables > melon vegetables > bean vegetables.The low Cd collection capacity vegetables such as leaf vegetables should be planted in Cd-over standard area.On average,the residents of cadmium-over standard[Cd <(0.977 ± 0.090) mg/kg]ingest 43.59 μg/d in sumner and 14.99 μg/d in winter per person through this study varieties,which did not pose any health risk to common people.
引文
[1]李素霞,胡正立,胡承孝,等.镉污染条件下不同种类氮肥对克菜品质的影响[J].中国农学通报,2009,25(22):182-185.
[2]郭海涛.不同蔬菜吸收积累镉的差异研究[D].首都师范大学,2009:8.
[3]金立坚,李向龙,印悦,等.2011年四川省农村土壤中铅和镉含量调查[J].环境与健康杂志,2012,29(12):1112-1115.
[4]尚爱安,刘玉荣,梁重山,等.土壤中重金属的生物有效性研究进展[J].土壤,2000(6):294-300,314.
[5]欧阳喜辉,赵玉杰,刘凤枝,等.不同种类蔬菜对土壤镉吸收能力的研究[JJ.农业环境科学学报,2007,27(1):67-70.
[6]罗晓梅,张义蓉,杨定清.成都地区蔬菜中重金属污染分析与评价[J].四川环境,2003,22(2):49-51.
[7]郑娜,王起超,郑冬梅.基于THQ的锌冶炼厂周围人群食用蔬菜的健康风险分析[J].环境科学学报,2007,27(4):672-678.
[8]李明德,汤海涛,汤睿,等.长沙市郊蔬菜土壤和蔬菜重金属污染状况调查及评价[J].湖南农业科学,2005(3):34-36.
[9]廖自基.微量元素的环境化学及生物效应[M].北京:中国环境科学出版社,1993.299-302.
[10]吴启堂,陈卢,王文寿.水稻不同品种对Cd吸收累积的差异和机理研究[J].生态学报,1999,19(1):104-107.
[11]王凯荣,龚惠群.两种基因型水稻对环境镉吸收与再分配差异性比较研究[J].农业环境科学保护,1996,15(4):145-149,176.
[2]郭海涛.不同蔬菜吸收积累镉的差异研究[D].首都师范大学,2009:8.
[3]金立坚,李向龙,印悦,等.2011年四川省农村土壤中铅和镉含量调查[J].环境与健康杂志,2012,29(12):1112-1115.
[4]尚爱安,刘玉荣,梁重山,等.土壤中重金属的生物有效性研究进展[J].土壤,2000(6):294-300,314.
[5]欧阳喜辉,赵玉杰,刘凤枝,等.不同种类蔬菜对土壤镉吸收能力的研究[JJ.农业环境科学学报,2007,27(1):67-70.
[6]罗晓梅,张义蓉,杨定清.成都地区蔬菜中重金属污染分析与评价[J].四川环境,2003,22(2):49-51.
[7]郑娜,王起超,郑冬梅.基于THQ的锌冶炼厂周围人群食用蔬菜的健康风险分析[J].环境科学学报,2007,27(4):672-678.
[8]李明德,汤海涛,汤睿,等.长沙市郊蔬菜土壤和蔬菜重金属污染状况调查及评价[J].湖南农业科学,2005(3):34-36.
[9]廖自基.微量元素的环境化学及生物效应[M].北京:中国环境科学出版社,1993.299-302.
[10]吴启堂,陈卢,王文寿.水稻不同品种对Cd吸收累积的差异和机理研究[J].生态学报,1999,19(1):104-107.
[11]王凯荣,龚惠群.两种基因型水稻对环境镉吸收与再分配差异性比较研究[J].农业环境科学保护,1996,15(4):145-149,176.
目录