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目的了解涪陵地区猪肉及肝脏中砷、铅和汞等重金属污染现状。方法随机采集黑猪饲料和配合饲料饲养的猪肉、肝样品各30件,饮用水10份、土壤5份,用氢化物-原子荧光法、等离子体原子发射光谱法和直接测汞仪法分别测定砷、铅和汞含量。结果砷、铅和汞含量均值黑猪肉分别为0.037mg/kg、0.161mg/kg、1.800μg/kg,黑猪肝分别为0.067mg/kg、0.339mg/kg、3.339μg/kg;配合饲料猪肉分别为0.073mg/kg、0.203mg/kg和2.738μg/kg,配合饲料猪肝分别为0.100mg/kg、0.456mg/kg和4.722μg/kg。黑猪猪肉及猪肝中的砷、铅和汞含量均低于配合饲料猪肉和猪肝;土壤和饮用水均低于国标限量要求。结论应采取有效措施控制饲料中重金属含量,减少对猪肉及肝脏的污染,减少对人体健康的危害。
Objective To understand the status of heavy metal pollution such as arsenic, lead and mercury in pork and liver in Fuling area. Methods Pork and liver samples were collected from black pig feed and compound feed at a rate of 30, drinking water 10 and soil 5 by hydride generation - atomic fluorescence spectrometry and direct mercury determination. Arsenic, lead and mercury content. Results The arsenic, lead and mercury contents of black pork were 0.037mg / kg, 0.161mg / kg and 1.800μg / kg, respectively. The black pig liver was 0.067mg / kg, 0.339mg / kg and 3.339μg / kg respectively. 0.073mg / kg, 0.203mg / kg and 2.738μg / kg respectively, and the piglets with compound feed were 0.100mg / kg, 0.456mg / kg and 4.722μg / kg, respectively. The contents of arsenic, lead and mercury in black pig pork and pork liver were lower than pork and pig liver of compound feed; the soil and drinking water were lower than the national standard. Conclusion Effective measures should be taken to control the content of heavy metals in feed, reduce the pollution of pork and liver and reduce the harm to human health.