云南化工2024，Vol.51Issue(4)：120-124,5.DOI:10.3969/j.issn.1004-275X.2024.04.28
鱼腥草中重金属含量特征及健康风险评价
Analysis and Health Risk Assessment of Heavy Metal in Houttuynia Cordata Thunberg
李航 1谭谦 1胡引 1蔡砚芳 1杨华 1唐鹏1
作者信息
- 1. 遵义市产品质量检验检测院,贵州 遵义 563000
- 折叠
摘要
Abstract
In this study,the contents of lead(Pb),chromium(Cr),cadmium(Cd)and arsenic(As)in Houttuynia cordata Thunberg(HCT)sold in Zunyi City and wild HCT in surrounding towns were determined by inductively coupled plasma-mass spectrometry(ICP-MS)using the microwave digestion method in the national food safety standard determination of multi elements in food(GB 5009.268-2016).The distri-bution differences of heavy metals in different parts(roots and underground stems)of HCT and wild HCT were compared and analyzed,and the health risks of residents ingesting Pb,Cr,Cd and As by eating Houttuynia cordata Thunb were preliminarily evaluated by using Nemero compre-hensive pollution index method,single factor pollution index method and target risk coefficient.The results showed that Pb,Cr,Cd and As in the collected samples of HCT and wild HCT exceeded the standard in varying degrees.The contents of Pb,Cr,Cd and As in commercial HCT were significantly higher than those in underground stems,which were 9.7 times,5.3 times,19.9 times and 9.0 times respectively.The roots and underground stems of HCT on the market are seriously polluted and slightly polluted respectively(P-complex is 20.8 and 1.1 respective-ly),while the roots and underground stems of wild HCT are seriously polluted by heavy metals(P-complex is 92.5 and 5.9 respectively).The target hazard coefficient(THQ)of a single heavy metal in both commercial and wild HCT was Cr＞Cd＞Pb＞As.The TTHQ of underground stems of commercial HCT was less than 1,indicating that there was no obvious health risk,but the TTHQ in the underground stems of wild HCT was 1.139,indicating obvious health risk.Due to the high content of heavy metals in the roots of HCT,it was recommended to remove the roots when eating HCT so as to reduce the health risk to residents.关键词
鱼腥草/重金属/健康风险/遵义市Key words
Houttuynia Cordata Thunberg/Heavy Metals/Health Risks/Zunyi City分类
资源环境引用本文复制引用
李航,谭谦,胡引,蔡砚芳,杨华,唐鹏..鱼腥草中重金属含量特征及健康风险评价[J].云南化工,2024,51(4):120-124,5.
