| 浙、川、湘毛竹主产区冬笋重金属质量分数及健康风险评估 |
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| 引用本文： | 张延平,陈振超,汤富彬,任传义,倪张林,屈明华.浙、川、湘毛竹主产区冬笋重金属质量分数及健康风险评估[J].浙江农林大学学报,2018,35(4):635-641. |
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| 作者姓名： | 张延平 陈振超 汤富彬 任传义 倪张林 屈明华 |
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| 作者单位： | 中国林业科学研究院 亚热带林业研究所, 浙江 杭州 311400 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资助CAFYBB2017SZ002 |
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| 摘 要： | 测定了浙江省、四川省和湖南省毛竹Phyllostachys edulis冬笋中砷、铅、镉和铬等元素的质量分数，并统计超标情况；采用单因子污染指数、综合因子污染指数法和目标风险系数法对毛竹冬笋中各重金属健康风险系数的比重和食用安全性进行评价。结果表明:各地冬笋中4种重金属均存在超标现象；浙江省冬笋砷、铅、镉和铬的超标率分别为0.6%，2.3%，1.1%和0.6%；四川省冬笋铅和镉的超标率分别为46.0%和45.3%；湖南省冬笋砷、铅和镉的超标率分别为2.5%，9.3%和18.6%。综合因子污染指数大小顺序为四川省＞湖南省＞浙江省；成人高危系数大小顺序为四川省＞湖南省＞浙江省，儿童高危系数则为湖南省＞四川省＞浙江省，即使按最大摄入量计算，食用产自这3省的冬笋时，这4种重金属也不会对成人造成健康风险；但是当儿童摄入湖南冬笋超过134 g·d-1时，可能存在重金属健康风险。
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| 关 键 词： | 森林生态学 毛竹 冬笋 重金属 质量分数分析 风险评估 |
| 收稿时间： | 2017-07-06 |
Content and risk assessment of heavy metals in winter shoots of Phyllostachys edulis from Zhejiang,Sichuan, and Hunan Provinces |
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| ZHANG Yanping,CHEN Zhenchao,TANG Fubin,REN Chuanyi,NI Zhanglin,QU Minghua.Content and risk assessment of heavy metals in winter shoots of Phyllostachys edulis from Zhejiang,Sichuan, and Hunan Provinces[J].Journal of Zhejiang A&F University,2018,35(4):635-641. |
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| Authors: | ZHANG Yanping CHEN Zhenchao TANG Fubin REN Chuanyi NI Zhanglin QU Minghua |
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| Institution: | Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, Zhejiang, China |
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| Abstract: | To investigate pollution levels and evaluate potential risks of arsenic (As), lead (Pb), cadmium (Cd), and chromium(Cr) in winter shoots of Phyllostachys edulis (Moso bamboo), concentrations and excesses above the standard rate for heavy metals (As, Pb, Cd, and Cr) in winter shoots of Moso bamboo collected from Zhejiang, Sichuan, and Hunan were measured and summarized. A single factor pollution index, comprehensive pollution index, and target hazard quotient (THQ) were applied to assess pollution levels and food safety of heavy metals in winter bamboo shoots. Also, proportions of each heavy metal in THQ were analyzed. Results showed that the content of As, Pb, Cd, and Cr exceeded allowable limits. Percentages exceeding allowable limits with winter Moso bamboo shoots in Zhejiang were As (0.6%), Pb (2.3%), Cd (1.1%), and Cr (0.6%); in Sichuan were Pb (46.0%) and Cd (45.3%); and in Hunan were As (2.5%), Pb (9.3%), and Cd (18.6%). The order for the comprehensive pollution index values was Sichuan > Hunan > Zhejiang. The order of heavy metal Hazard Index values for adults was Sichuan > Hunan > Zhejiang and for children was Hunan > Sichuan > Zhejiang. This study indicated that heavy metals caused no harm to adults even with the maximum acceptable daily intake of winter Moso bamboo shoots, but when children had more than 134 g of Hunan winter Moso bamboo shoots per day, a health risk could appear. |
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