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目的分析成都市畜禽血制品中甲醛本底含量及污染状况,并对畜禽血制品中甲醛的风险进行初步评估。方法对全市范围内畜禽血制品中甲醛含量进行测定,结合成都市居民膳食消费数据,计算成都市居民甲醛暴露量及安全限值(MOS),采用点评估的方法开展成都市居民摄入畜禽血制品中甲醛的风险评估。结果畜禽血制品及新鲜畜禽血中甲醛平均含量(中位数)分别为2.51 mg/kg、2.53 mg/kg,但是在畜禽血制品中明显存在个别甲醛含量极高的现象,最高值为3 200.00 mg/kg。采用平均暴露量的点评估模型获得的畜禽血制品中甲醛急、慢性暴露的MOS分别是780、2 500,而采用高端暴露量的点评估模型获得的甲醛急、慢性暴露的MOS分别是0.5、0.9。结论成都市大部分畜禽血制品可能会有一个较低的本底含量,但不排除部分的畜禽血制品中甲醛含量极高,提示可能存在一个人为添加的过程。采用高端暴露量评估提示该物质对人体健康的风险超过了可以接受的限度,应当采取适当的风险管理措施。
Objective To analyze the formaldehyde content and pollution status of livestock and poultry blood products in Chengdu and to evaluate the risk of formaldehyde in livestock blood products. Methods The content of formaldehyde in livestock and poultry blood products in the whole city was measured. According to the dietary consumption data of Chengdu residents, the formaldehyde exposure and safety limit (MOS) of Chengdu residents were calculated, and the method of point assessment was used to carry out the intake of Chengdu residents Risk Assessment of Formaldehyde in Poultry Blood Products. Results The average levels of formaldehyde in blood of livestock and poultry blood products and fresh livestock and poultry were 2.51 mg / kg and 2.53 mg / kg, respectively. However, there was a clear phenomenon that some formaldehyde content was extremely high in livestock and poultry blood products. 3 200.00 mg / kg. The MOS of the acute and chronic formaldehyde exposure of livestock and poultry blood products obtained using the point average assessment model was 780 and 2 500, respectively, whereas those of the acute and chronic exposure of formaldehyde using the high-end exposure assessment model were 0.5 , 0.9. Conclusion Most of the blood products of livestock and poultry in Chengdu may have a lower background content, but it is not excluded that the content of formaldehyde in some blood products of livestock and poultry is very high, suggesting that there may be a process of human addition. The assessment of high-end exposure suggests that the substance poses a risk to human health that exceeds acceptable limits and that appropriate risk management measures should be taken.