Institute of Agricultural Quality Standards and Testing Technology，Hubei Provincial Academy of Agricultural Sciences，Laboratory for Agro-products Quality & Safety Risk Assessment（Wuhan），Ministry of Agriculture and Rural Affairs，Key Laboratory for Agro-products Nutritional Quality and Safety of Hubei Province，Wuhan 430064，Hubei，China
Abstract：In order to investigate the heavy metal contamination status of Sagittaria sagittifolia at main producing areas in China，timely find out quality and safety hazards，and scientifically prevent and control heavy metals risk in aquatic vegetables，this study from 2019 to 2021 continuously collected batch 175 samples from major production bases of Sagittaria sagittarius in Hubei，Jiangsu，Zhejiang Provinces and Guangxi Zhuang Autonomous Regio；monitored the contents of 7 kinds heavy metals；and conducted dietary exposure risk assessment by index of food safety（IFS）method．The results showed that the overall pass rate of heavy metals in Sagittaria sagittata samples was 98.3%．The detection rates of Cu，As and Cd all were 100.0%. The detection rates of Cr，Pb，Ni and Hg were 78.8%，69.7%，36.6% and 20.0%，respectively．Among them，the exceeding standard rates of As and Cd were 1.1% and 0.6%，respectively．Two batches of As over-standard samples and one batch of Cd over-standard sample were from Jiangsu Province，Hubei Province and Guangxi Zhuang Autonomous Region，respectively．Judging from the safety index evaluation results，both IFS and IFS of 7 kinds heavy metals in Sagittaria sagittata were far less than 1，indicating that the overall exposure risk was within the acceptable range.
张隽娴 张惠贤 崔文文 郑 丹 张 仙 彭立军 周有祥 彭西甜*. 2019—2021年我国主要产区慈姑中重金属污染状况监测分析[J]. 中国蔬菜, 2023, 1(10): 74-80.
ZHANG Junxian，ZHANG Huixian，CUI Wenwen，ZHENG Dan，ZHANG Xian，PNEG Lijun，ZHOU Youxiang，PENG Xitian*. Monitoring and Analysis from 2019 to 2021 on Heavy Metal Contamination in Sagittaria sagittifolia Samples Collected at Main Producing Areas of China. China Vegetables, 2023, 1(10): 74-80.
