牛大力及产地土壤重金属安全性评估  

Safety Assessment of Heavy Metals in Nanhaia speciosa and in Soil of Origin

作　　者：陈颖乐 刘璐冰 王志宏 王颂 徐巧林[1] 曾雷[1] CHEN Yingle;LIU Lubing;WANG Zhihong;WANG Song;XU Qiaolin;ZENG Lei(Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization/Guangdong Academy of Forestry,Guangzhou,Guangdong 510520,China)

机构地区：[1]广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东广州510520

出　　处：《林业与环境科学》2024年第4期20-26,共7页Forestry and Environmental Science

基　　金：广东省林业科技创新项目(2020KJCX013);广东省林业科技计划项目(2021KYXM01)。

摘　　要：为探究牛大力及产地土壤的重金属安全性,给广东省牛大力产业发展提供科学依据,研究采用ICP-MS和原子荧光光谱法测定牛大力产品及土壤的重金属含量,并对产品的健康风险及土壤重金属安全性进行了评估。结果表明,2020—2021年,广东牛大力不存在重金属(Pb、Cd、As)超标问题。结合重金属日暴露量、靶标危害系数和危害指数为评估标准,牛大力不会对人体健康造成影响。总体上,牛大力产地土壤的重金属安全性较高,Hakanson潜在生态风险较低。同时,土壤Pb质量分数与产品Pb质量分数、土壤As质量分数与产品As质量分数之间具有显著正相关关系。产地土壤重金属安全问题与中药材安全性息息相关,为保障牛大力产品质量安全,必须加强产地土壤重金属等有害元素的管控。Aiming to provide a scientific basis for the development of Nanhaia speciosa industry in Guang-dong province,we investigated the safety of heavy metals in N.speciosa and in soil of origin.Inductively cou-pled plasma mass spectrometry and atomic fluorescence spectroscopy were used to determine the heavy metals content of N.speciosa and soil at first,and latter the health risk of products and the safety of soil were evalua-ted.The results showed that there was no contamination of plumbum,cadmium and arsenic in N.speciosa.We integrated different evaluation indexes,including the dietary exposure portion,the target hazard quotient and the hazard index,to evaluate the impact of N.speciosa on human health,finding harmless products to the human body.Generally,the safety of soil affected by heavy metals was under control,and Hakanson′s potential eco-logical risk was low.In addition,there were significant positive associations between plumbum in soil and in products,and between arsenic in soil and in products.In conclusion,the safety of Chinese medicine is inextri-cably linked to the heavy metals pollution in the soil of origin.Therefore,to ensure the quality and safety of N.speciosa,it is necessary to strengthen the monitoring of harmful elements in soil,especially heavy metals.

关 键 词：牛大力 土壤 重金属安全性 健康风险 潜在生态风险 

分 类 号：X503.23[环境科学与工程—环境工程] X820.4