Cadmium exposure assessment based on food survey data in an urban area of Beijing and Chongli area of Zhangjiakou
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1.Beijing Center for Disease Prevention and Control, Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing 100013, China;2.School of Public Health, Capital Medical University, Beijing 100069, China;3.Academy of National Food and Strategic Reserves Administration, Beijing 100037, China;4.China National Center for Food Safety Risk Assessment, Beijing 100022, China

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R155

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    Abstract:

    Objective To provide a reference for food safety risk assessment and safety assurance for the Winter Olympics and Beijing residents, the exposure level and possible health risks of cadmium (Cd) in main foods in the surrounding areas of the 2022 Beijing Winter Olympics were evaluated. Methods Based on the hazard assessment and limit standard analysis of cadmium, the point assessment method was used to assess the dietary exposure risk of cadmium. The 2019 to 2020 on-site sampling survey data of an urban area of Beijing and Zhangjiakou Chongli area and the 2018 Beijing main food consumption survey data were used in this pre-assessment. Results The cadmium provisional tolerated monthly intake (PTMI) established by joint FAO/WHO Expert Committee on Food Additives (JECFA) was 25 μg/kg·BW. The overall average content of cadmium in various foods was 0.010 6 mg/kg, and the overall rate of exceeding the standard was 0.47%. The average exposure of Beijing residents to cadmium through the main food was 5.92 μg/(kg·BW·m), accounting for 23.66% of the JECFA-recommended provisional tolerable monthly intake (PTMI) of 25 μg/kg·BW. In addition, cereals and vegetable foods were the main sources of dietary cadmium exposure. According to the current limit of cadmium (LOC) in GB 2762—2017 National Food Safety Standards Limits of contaminants in food, except for these two categories of food, the theoretical exposure to cadmium in the rest of the food did not exceed the PTMI. The estimated LOC for vegetables, grains and cereals is 0.172 and 0.199 mg/kg, both of which were less than the maximum limit value stipulated by the national standard. Conclusion The main food cadmium exposure of Winter Olympics and Beijing residents is generally at a safe level, and the health risk is relatively low.

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HAN Gaochao, JING Haiming, HAN Yitao, LI Nan, ZHANG Lei, SONG Yan, LUO Fei, HOU Yan, ZHANG Guoyan, LI Zinan, ZHANG Wenjing, QI Lijuan, DU Hongju, NIE Yanmin, TAN Zhuangsheng, NING Junyu, GAO Shan, LOU Yun, LI Guojun. Cadmium exposure assessment based on food survey data in an urban area of Beijing and Chongli area of Zhangjiakou[J].中国食品卫生杂志,2022,34(4):780-785.

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History
  • Received:December 26,2021
  • Revised:
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  • Online: August 26,2022
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