Department of Nuclear Science & Engineering, Military Institute of Science and Technology, Mirpur, Dhaka, 1216, Bangladesh.
Institute of Nuclear Science & Technology, Atomic Energy Research Establishment, Ganakbari, Ashulia, Dhaka, 1349, Bangladesh.
Biol Trace Elem Res. 2019 Sep;191(1):243-253. doi: 10.1007/s12011-018-1596-3. Epub 2019 Jan 5.
This study was conducted to determine concentrations of five toxic trace elements (Cr, Ni, As, Cd, and Pb) in cereals, fruits, and vegetables of Bangladesh. The range of mass fractions (mg/kg) of Cr, Ni, As, Cd, and Pb in the foodstuffs was 0.090-2.5, 0.03-2.6, 0.13-1.7, 0.010-0.74, and 0.37-2.2, respectively. This study indicates that concentration of Cr, and Pb in fruits; As, Cd, and Pb in vegetables were higher than WHO/FAO maximum allowable concentration levels. The hazard index (HI) values for adults and children of the toxic elements in studied cereals, fruits and vegetables were higher than 1.0, suggesting non-carcinogenic adverse health hazard to the consumers. The estimated target carcinogenic risk (TCR) values were greater than the threshold level of 1.0 × 10 for Cr and Cd in cereals and vegetables indicate potential cancer risk to both adults and children for consumption of the foodstuffs. The present study reveals that trace elements contamination in foodstuffs is a serious issue of concern in Bangladesh.
本研究旨在测定孟加拉国谷物、水果和蔬菜中五种有毒微量元素（Cr、Ni、As、Cd 和 Pb）的浓度。食品中 Cr、Ni、As、Cd 和 Pb 的质量分数（mg/kg）范围分别为 0.090-2.5、0.03-2.6、0.13-1.7、0.010-0.74 和 0.37-2.2。本研究表明，水果中 Cr 和 Pb 的浓度、蔬菜中 As、Cd 和 Pb 的浓度均高于世界卫生组织/粮农组织的最大允许浓度水平。研究中谷物、水果和蔬菜中有毒元素的成人和儿童危害指数（HI）值均高于 1.0，表明消费者存在非致癌性健康危害。估计的目标致癌风险（TCR）值大于谷物和蔬菜中 Cr 和 Cd 的阈值水平 1.0×10，表明成年人和儿童食用这些食品存在潜在的癌症风险。本研究表明，孟加拉国食品中的微量元素污染是一个严重的问题。
