Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China; School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China.
Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
Chemosphere. 2016 Feb;144:564-70. doi: 10.1016/j.chemosphere.2015.09.005. Epub 2015 Sep 21.
This study aimed to investigate the levels of trace elements in animal-derived food in Shenzhen, Southern China. The concentrations of 14 trace elements (Cd, Hg, Pb, As, Cr, Cu, Fe, Zn, Mn, Mo, Ni, Co, Se and Ti) in a total of 220 meat samples, collected from the local markets of Shenzhen were determined. Cu, Fe and Zn were the major elements, with concentrations approximately 2-3 orders of magnitude higher than those of other elements. However, the daily intakes of Cu, Fe and Zn merely via the consumption of the meat products were lower than the recommended nutrient intake values provided by the 2013 Chinese Dietary Guide. Among the non-essential trace elements, Cd was accumulated in animal viscera, and the concentration ratios of chicken gizzard/chicken, chicken liver/chicken, pig kidney/pork and pig liver/pork were 41.6, 55.2, 863 and 177, respectively. In addition, high concentrations of As were found in aquatic products, especially in marine fish. The concentration of As in marine fish was slightly higher than the limits recommended by China, USA and Croatia. The health risk assessment of trace elements through the consumption of meat products by adult residents in Shenzhen was evaluated by using the target hazard quotient (THQ) method. The total THQ was greater than 1, implying a potential health risk. Approximately 66% of total THQ values, mainly from As, were from the consumption of aquatic products.
本研究旨在调查中国南方深圳市动物源性食品中的微量元素水平。采集了深圳市当地市场的 220 个肉类样本，测定了其中 14 种微量元素（Cd、Hg、Pb、As、Cr、Cu、Fe、Zn、Mn、Mo、Ni、Co、Se 和 Ti）的浓度。Cu、Fe 和 Zn 是主要元素，其浓度约为其他元素的 2-3 个数量级。然而，通过食用肉类产品获得的 Cu、Fe 和 Zn 的日摄入量低于 2013 年中国膳食指南提供的推荐营养素摄入量值。在非必需微量元素中，Cd 蓄积在动物内脏中，鸡肫/鸡、鸡肝/鸡、猪肾/猪肉和猪肝/猪肉的浓度比分别为 41.6、55.2、863 和 177。此外，水产品中发现了高浓度的 As，尤其是海洋鱼类。海洋鱼类中的 As 浓度略高于中国、美国和克罗地亚推荐的限量。采用目标危害系数（THQ）法对深圳成年居民通过食用肉类产品摄入微量元素的健康风险进行评估。总 THQ 大于 1，表明存在潜在的健康风险。约 66%的总 THQ 值，主要来自 As，来自食用水产品。
