Low Kah Hin, Zain Sharifuddin Md, Abas Mhd Radzi, Md Salleh Kaharudin, Teo Yin Yin
Environmental Research Group, Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Environmental Research Group, Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Food Chem. 2015 Jun 15;177:390-6. doi: 10.1016/j.foodchem.2015.01.059. Epub 2015 Jan 17.
The trace metal concentrations in edible muscle of red tilapia (Oreochromis spp.) sampled from a former tin mining pool, concrete tank and earthen pond in Jelebu were analysed with microwave assisted digestion-inductively coupled plasma-mass spectrometry. Results were compared with established legal limits and the daily ingestion exposures simulated using the Monte Carlo algorithm for potential health risks. Among the metals investigated, arsenic was found to be the key contaminant, which may have arisen from the use of formulated feeding pellets. Although the risks of toxicity associated with consumption of red tilapia from the sites investigated were found to be within the tolerable range, the preliminary probabilistic estimation of As cancer risk shows that the 95th percentile risk level surpassed the benchmark level of 10(-5). In general, the probabilistic health risks associated with ingestion of red tilapia can be ranked as follows: former tin mining pool > concrete tank > earthen pond.
采用微波辅助消解-电感耦合等离子体质谱法，对从杰勒布一个 former tin mining pool、混凝土水箱和土池中采集的红罗非鱼（Oreochromis spp.）可食用肌肉中的痕量金属浓度进行了分析。将结果与既定的法定限值进行比较，并使用蒙特卡罗算法模拟每日摄入暴露量，以评估潜在的健康风险。在所研究的金属中，砷被发现是主要污染物，这可能源于使用了配方饲料颗粒。尽管从所调查地点食用红罗非鱼的毒性风险被发现处于可接受范围内，但砷致癌风险的初步概率估计表明，第95百分位数风险水平超过了10(-5)的基准水平。总体而言，与摄入红罗非鱼相关的概率性健康风险可按以下顺序排列：former tin mining pool＞混凝土水箱＞土池。
