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目的了解石家庄地区食物中重金属铅、汞、镉的含量状况及分布规律。方法样品均为石家庄地区县(市)市售常见食品,样品处理及测试采用国家标准方法 (GB/T5009.12.15.17)。结果食品中重金属主要是铅污染,样本中铅的超标率分别为猪肾50.0%、猪肉44.0%、米(大米、黑米)35.0%、面粉33.3%。镉的超标率较低,样本中汞含量检测全部符合国家标准。结论石家庄地区铅污染严重;食品中汞、镉安全。
Objective To understand the content and distribution of heavy metals Pb, Hg and Cd in food in Shijiazhuang area. Methods The samples were all common foods on the market of Shijiazhuang county (city), and the national standards (GB / T5009.12.15.17) were used for sample processing and testing. Results The main heavy metals in food were lead pollution. The exceeding standard rates of lead in samples were 50.0% for porcine kidney, 44.0% for pork, 35.0% for rice (rice and black rice) and 33.3% for flour. Cadmium exceeded the low rate of mercury in the sample testing all in line with national standards. Conclusion The lead pollution in Shijiazhuang is serious. The mercury and cadmium in food are safe.