Report on the levels of cadmium, lead, and mercury in imported rice grain samples
Report on the levels of cadmium, lead, and mercury in imported rice grain samples
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DOI：
10.1385/bter:83:1:91
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发表时间：
2001-10-01
影响因子：
3.9
通讯作者：
Shinwari, N
中科院分区：
文献类型：
--
作者：
Al-Saleh, I;Shinwari, N
为了了解高消费的食物是否会导致金属暴露，我们分析了沙特阿拉伯常用的27种大米样品中的镉，铅和汞，酸消化后用原子吸收光谱法进行分析。镉、铅和汞的平均浓度和范围分别为20.261（范围< DL-178.026 mug/kg）、134.819（范围23.1-1529.0 mug/kg）和3.186（范围< DL-43.573 mug/kg）。结果表明，金属的浓度很高，在某些情况下超过了粮农组织/世卫组织建议的每周暂定耐受摄入量。还注意到，不同的米粒样品具有不同的这些金属浓度。由于大量文献警告长期接触重金属的累积效应，当地居民经常食用大米可能会造成潜在的健康问题。
In an attempt to know whether highly consumed food might contribute to metal exposure, we analyzed cadmium, lead, and mercury in 27 rice grain samples commonly consumed in Saudi Arabia by atomic absorption spectrometry after acid digestion. The mean concentrations and ranges of cadmium, lead, and mercury in tested rice samples were 20.261 (range < DL-178.026 mug/kg), 134.819 (range 23.1-1529.0 mug/kg), and 3.186 (range < DL-43.573 mug/kg), respectively. The results showed high concentrations of metals and in some cases exceeded the Provisional Tolerance Weekly Intake (PTWI) recommended by FAO/WHO. It was also noted that different rice grain samples had varying concentrations of these metals. Because the bulk of literature warns against the cumulative effects of prolonged heavy metal exposure, regular consumption of rice by local populations might pose potential health problems.