攀西核桃中Cd累积特性及其残留量检测与风险评估

付卓锐; 罗雅川; 黄伊嘉; 莫开林

doi:10.16779/j.cnki.1003-5508.2016.03.006

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攀西核桃中Cd累积特性及其残留量检测与风险评估

付卓锐 , 罗雅川 , 黄伊嘉 , 莫开林

文章导航 > 四川林业科技 > 2016 > 37(3): 31-38

付卓锐, 罗雅川, 黄伊嘉, 莫开林. 攀西核桃中Cd累积特性及其残留量检测与风险评估[J]. 四川林业科技, 2016, 37(3): 31-38. doi: 10.16779/j.cnki.1003-5508.2016.03.006

引用本文:

付卓锐, 罗雅川, 黄伊嘉, 莫开林. 攀西核桃中Cd累积特性及其残留量检测与风险评估[J]. 四川林业科技, 2016, 37(3): 31-38. doi: 10.16779/j.cnki.1003-5508.2016.03.006

FU Zhuo-rui, LUO Ya-chuan, HUANG Yi-jia, MO Kai-lin. Accumulation Characteristics of Cadmium in the Walnut in Panzhihua-Xichang regions and its Residue Detection and Risk Assessment[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(3): 31-38. doi: 10.16779/j.cnki.1003-5508.2016.03.006

Citation:

FU Zhuo-rui, LUO Ya-chuan, HUANG Yi-jia, MO Kai-lin. Accumulation Characteristics of Cadmium in the Walnut in Panzhihua-Xichang regions and its Residue Detection and Risk Assessment[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(3): 31-38. doi: 10.16779/j.cnki.1003-5508.2016.03.006

攀西核桃中Cd累积特性及其残留量检测与风险评估

doi: 10.16779/j.cnki.1003-5508.2016.03.006

详细信息

四川省林业科学研究院，四川成都 610066

作者简介:
付卓锐(1983-),女,硕士研究生,从事森林食品检验及监测工作。E-mail:85908408@qq.com。

基金项目:
四川省公益性科研院所基本科研项目JB201515。
中图分类号: S759.33

Accumulation Characteristics of Cadmium in the Walnut in Panzhihua-Xichang regions and its Residue Detection and Risk Assessment

More Information

Sichuan Academy of Forestry, Chengdu 610066, China

摘要: 采用原子吸收光谱法测定攀西地区核桃产地土壤、树皮、叶、青皮、壳和仁中镉(Cd)的含量,研究攀西地区核桃对镉(Cd)的积累特性及食用风险。结果表明:产地土壤中检测出的Cd含量显著高于核桃树各器官中该元素的浓度,且存在超出国标限量的土壤样本;核桃叶样品Cd含量均显著高于各点核桃仁;随着土壤中Cd含量的增加,核桃树皮、叶、青皮、壳和仁并未有明显的富集规律,与其他核桃主要器官相比,核桃可食用部分富集Cd的能力比较弱;内梅罗指数评价方法结果显示,核桃仁Cd的污染指数P值均<1,表示攀西核桃基地试验点的核桃仁样品关于Cd指标未受污染;参照中国现行标准,结合我国居民树坚果的消费量,将其扩大化至推荐值,推算出,无论是成人还是儿童,关于核桃仁中Cd的目标风险系数THQ都远低于1.0,说明核桃可食用部分中重金属Cd含量对我国消费者的健康影响目前是风险极低的。但从整体情况来看,核桃产地土壤和产品的可食用部分仍需要严格抽样监测,以降低污染产品和损害人体健康的概率。
- 核桃;
- 镉(Cd);
- 积累特性;
- 风险评估
Abstract: By using the atomic absorption spectrometry,determination was conducted on the content of Cadmium (Cd) in the soil and bark,leaf,green husk,shell and kernel of walnuts from Panzhihua-Xichang Regions' walnut producing areas in order to study the accumulation characteristics of cadmium (Cd) and consumption risk of the walnut.The results showed that the content of Cd in the soil was significantly higher than that in the organs of the walnut tree,and there were soil samples which exceeded the national standard; the content of Cd in the leaf samples was significantly higher than that in the walnut;with the increase of Cd content in the soil,the bark,leaf,green husk,shell,and kernel didnot show an obvious enrichment regularity,and the accumulation ability of the walnut's edible parts was weaker as compared with the other main organs;The results of the Nemerow Index Method showed that the comprehensive pollution index of Cd in the walnut was P<1,indicating the walnut samples of the experimental point in production bases of Panzhihua-Xichang regions were out of Cd pollution;Referring to China's current standards and the tree nut consumption amount of Chinese residents,it was calculated that the target risk factor about Cd in the walnut was much lower than 1.0 no matter for adults or kids,which meant that the content of heavy metal Cd in the edible parts of walnut was temporarily risk-free for Chinese consumers' health.However,from the overall situation,the locality soil and edible parts of walnut would still need strict a sampling examination to reduce the probability of product pollution and human health damage.
- Walnut;
- Cadmium (Cd);
- Accumulation characteristics;
- Risk Assessment

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攀西核桃中Cd累积特性及其残留量检测与风险评估

doi: 10.16779/j.cnki.1003-5508.2016.03.006

四川省林业科学研究院，四川成都 610066

作者简介:
付卓锐(1983-),女,硕士研究生,从事森林食品检验及监测工作。E-mail:85908408@qq.com。

收稿日期: 2015-12-19

基金项目:

四川省公益性科研院所基本科研项目JB201515。

中图分类号: S759.33

关键词:

摘要: 采用原子吸收光谱法测定攀西地区核桃产地土壤、树皮、叶、青皮、壳和仁中镉(Cd)的含量,研究攀西地区核桃对镉(Cd)的积累特性及食用风险。结果表明:产地土壤中检测出的Cd含量显著高于核桃树各器官中该元素的浓度,且存在超出国标限量的土壤样本;核桃叶样品Cd含量均显著高于各点核桃仁;随着土壤中Cd含量的增加,核桃树皮、叶、青皮、壳和仁并未有明显的富集规律,与其他核桃主要器官相比,核桃可食用部分富集Cd的能力比较弱;内梅罗指数评价方法结果显示,核桃仁Cd的污染指数P值均<1,表示攀西核桃基地试验点的核桃仁样品关于Cd指标未受污染;参照中国现行标准,结合我国居民树坚果的消费量,将其扩大化至推荐值,推算出,无论是成人还是儿童,关于核桃仁中Cd的目标风险系数THQ都远低于1.0,说明核桃可食用部分中重金属Cd含量对我国消费者的健康影响目前是风险极低的。但从整体情况来看,核桃产地土壤和产品的可食用部分仍需要严格抽样监测,以降低污染产品和损害人体健康的概率。

English Abstract

Accumulation Characteristics of Cadmium in the Walnut in Panzhihua-Xichang regions and its Residue Detection and Risk Assessment

Sichuan Academy of Forestry, Chengdu 610066, China

Received Date: 2015-12-19

Keywords:

Abstract: By using the atomic absorption spectrometry,determination was conducted on the content of Cadmium (Cd) in the soil and bark,leaf,green husk,shell and kernel of walnuts from Panzhihua-Xichang Regions' walnut producing areas in order to study the accumulation characteristics of cadmium (Cd) and consumption risk of the walnut.The results showed that the content of Cd in the soil was significantly higher than that in the organs of the walnut tree,and there were soil samples which exceeded the national standard; the content of Cd in the leaf samples was significantly higher than that in the walnut;with the increase of Cd content in the soil,the bark,leaf,green husk,shell,and kernel didnot show an obvious enrichment regularity,and the accumulation ability of the walnut's edible parts was weaker as compared with the other main organs;The results of the Nemerow Index Method showed that the comprehensive pollution index of Cd in the walnut was P<1,indicating the walnut samples of the experimental point in production bases of Panzhihua-Xichang regions were out of Cd pollution;Referring to China's current standards and the tree nut consumption amount of Chinese residents,it was calculated that the target risk factor about Cd in the walnut was much lower than 1.0 no matter for adults or kids,which meant that the content of heavy metal Cd in the edible parts of walnut was temporarily risk-free for Chinese consumers' health.However,from the overall situation,the locality soil and edible parts of walnut would still need strict a sampling examination to reduce the probability of product pollution and human health damage.