从尼日利亚屠宰台上采集的牛肌肉和可食用组织中的铅和镉含量。
Lead and cadmium levels in cattle muscle and edible tissues collected from a slaughter slab in Nigeria.
机构信息
a Department of Veterinary Public Health and Preventive Medicine , University of Ibadan , Ibadan , Nigeria.
出版信息
Food Addit Contam Part B Surveill. 2014;7(2):79-83. doi: 10.1080/19393210.2013.848942. Epub 2013 Nov 28.
Contamination levels of lead (Pb) and cadmium (Cd) in muscles, liver and kidney of 50 randomly selected, freshly slaughtered cattle in Ogun State, Nigeria were assessed using an official procedure and atomic absorption spectrophotometry. Results showed that Pb and Cd were present in all of the tested samples. Mean Pb concentrations were 0.721 ± 0.180 mg kg(-1), 0.809 ± 0.220 mg kg(-1) and 0.908 ± 0.422 mg kg(-1) in muscle, liver and kidney tissues, respectively. Mean Cd concentrations were 0.157 ± 0.049 mg kg(-1), 0.172 ± 0.071 mg kg(-1) and 0.197 ± 0.070 mg kg(-1) in muscle, liver and kidney tissues, respectively. Pb and Cd levels in muscle versus kidney tissues and also in liver versus kidney samples were significantly different (p < 0.05). Mean Pb concentrations in all tested tissues were significantly higher than the International Standards while the mean Cd concentrations in liver and kidney samples were within the limits of these standards.
采用官方程序和原子吸收分光光度法评估了 50 份随机抽取的尼日利亚奥贡州新鲜屠宰牛的肌肉、肝脏和肾脏中的铅（Pb）和镉（Cd）的污染水平。结果表明，所有测试样本中均存在 Pb 和 Cd。肌肉、肝脏和肾脏组织中的 Pb 浓度均值分别为 0.721 ± 0.180 mg/kg、0.809 ± 0.220 mg/kg 和 0.908 ± 0.422 mg/kg。肌肉、肝脏和肾脏组织中的 Cd 浓度均值分别为 0.157 ± 0.049 mg/kg、0.172 ± 0.071 mg/kg 和 0.197 ± 0.070 mg/kg。肌肉与肾脏组织中以及肝脏与肾脏样本中的 Pb 和 Cd 水平差异显著（p < 0.05）。所有测试组织中的 Pb 浓度均值均显著高于国际标准，而肝脏和肾脏样本中的 Cd 浓度均值均在这些标准的范围内。
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