辽宁省大米中无机砷残留的膳食风险评估

Dietary risk assessment of inorganic arsenic residues in rice in Liaoning Province

中文关键词:  大米  无机砷  膳食风险评估  风险商  点评估  概率评估

英文关键词:rice  inorganic arsenic  dietary risk assessment  hazard quotient  point assessment  probability assessment

中文摘要:

      目的 评估辽宁省大米中无机砷暴露对我省居民潜在的健康影响。方法 随机选择大型商场和小型农贸市场进行采样, 共采集样品300份, 采用高效液相色谱-电感耦合等离子体质谱法测定大米中亚砷酸盐、砷酸盐的含量。基于点评估和概率评估2种评估方式对大米中无机砷膳食暴露进行风险评估。结果 辽宁省大米中亚砷酸盐、砷酸盐的慢性膳食摄入风险(%ADI)值均远小于100%, 急性膳食摄入风险(%ARfD)值均远小于100%。概率评估结果显示, 在50%、75%、90%、99%暴露量位点下, 大米中亚砷酸盐、砷酸盐的风险商值均远小于1。结论 辽宁省大米中亚砷酸盐、砷酸盐残留量在人体可接受范围内, 无明显膳食风险。

英文摘要:

      Objective To evaluate the potential health risk of exposure to inorganic arsenic residues in rice in Liaoning Province. Methods A total of 300 samples were randomly selected from large shopping malls and small agricultural markets in Liaoning Province, the content of arsenite and arsenate in rice was determined by high performance liquid chromatography-inductively coupled plasma mass spectrometry. Risk assessment of dietary exposure to inorganic arsenic was conducted based on point assessment and probability assessment. Results The detected chronic dietary intake risk (%ADI) values ??of arsenite and arsenate in rice in Liaoning Province were far less than 100%, and the acute dietary intake risk (%ARfD) values ??were all far less than 100%. The probability assessment results showed that the hazard quotient values ??of arsenite and arsenate in rice were far less than 1 at 50%, 75%, 90%, and 99% exposure sites. Conclusion The arsenite and arsenate residues in rice in Liaoning Province is within the acceptable range of human body, and there is no obvious dietary risk.