几种在设拉子市场上可买到的大米中重金属的含量及其对人体健康的风险评估。
Concentration of some heavy metals in rice types available in Shiraz market and human health risk assessment.
机构信息
Department of Natural Resource and Environment, Group of Fisheries, Shiraz University, Shiraz, Fars, Iran..
Department of Natural Resource and Environment, Group of Fisheries, Shiraz University, Shiraz, Fars, Iran.
出版信息
Food Chem. 2015 May 15;175:243-8. doi: 10.1016/j.foodchem.2014.11.109. Epub 2014 Nov 26.
This investigation was conducted to survey the levels of some heavy metals such as cadmium, lead, chromium, nickel and cobalt in domestic cultivated and imported rice sold on the Shiraz - Iran markets. The potential human health risk assessment was conducted by considering estimated weekly intake (EWI) of toxic metals from eating rice and compared calculated values with provisional tolerable weekly intake (PTWI). The mean values for lead and cadmium in domestic cultivated and imported rice were considerably higher than allowable limits set by FAO/WHO. In combination of recent rice consumption data, the estimated weekly intakes of toxic element were calculated for Iranian population. EWI for cadmium, nickel, chromium through imported and domestic cultivated rice consumption was lower than the PTWI. The EWI for lead were considerably higher than other measured toxic metals. The highest mean level of EWI for lead was observed in some imported rice samples (25.76 μg/kg body weight).
本研究旨在调查伊朗锡拉兹市场上销售的国产和进口大米中镉、铅、铬、镍和钴等重金属的含量。通过考虑食用大米中有毒金属的估计每周摄入量（EWI），并将计算值与暂定每周耐受摄入量（PTWI）进行比较，对潜在的人类健康风险进行评估。国产和进口大米中铅和镉的平均值明显高于粮农组织/世卫组织规定的允许限量。结合最近的大米消费数据，计算了伊朗人口对有毒元素的估计每周摄入量。通过进口和国产大米消费，对人体的每周镉、镍、铬摄入量低于暂定每周耐受摄入量。铅的每周估计摄入量明显高于其他测量的有毒金属。在一些进口大米样本中，铅的每周估计摄入量的平均值最高（25.76μg/kg 体重）。
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