2016年济南市膳食蔬菜中不同形态砷调查及暴露量评估
发布时间：2018-12-17 14:21
【摘要】：目的了解济南市膳食蔬菜中不同形态砷的污染状况及评价其对居民的健康风险。方法利用液相色谱-原子荧光光谱法(LC-AFS)测定冬季常见蔬菜中的不同形态砷,并对居民通过蔬菜途径所致总砷和无机砷的暴露量进行评估。结果共检测蔬菜样品120份,总砷检出率为42.50%,平均含量为0.0079 mg/kg,其中藕的检出率和含量最高,分别为95.00%和0.029 mg/kg。本方法能够准确测定蔬菜中As(Ⅲ)、As(Ⅴ)、MMA和DMA 4种组分含量,在2份藕样品中检出As(Ⅲ),检出率为1.67%。居民经食用蔬菜所致总砷和无机砷暴露量分别为2.84×10~(-5)mg/(kg·d)和2.04×10~(-5)mg/(kg·d),占每日可耐受摄入量(TDI)比例分别为1.33%和0.95%;其中藕的总砷和无机砷暴露量最高,分别为10.54×10~(-5)mg/(kg·d)和3.96×10~(-5)mg/(kg·d),占TDI的比例为4.92%和1.85%。结论济南市蔬菜不存在明显的砷污染情况,居民通过食用蔬菜途径所致总砷和无机砷的暴露量在安全范围内。
[Abstract]:Objective to investigate the contamination of arsenic in dietary vegetables in Jinan and to evaluate its health risk. Methods different forms of arsenic in winter vegetables were determined by liquid chromatography-atomic fluorescence spectrometry (LC-AFS), and the exposure of residents to total arsenic and inorganic arsenic through vegetable pathway was evaluated. Results A total of 120 samples of vegetables were detected, the total arsenic detection rate was 42.50, the average content of lotus root was 0.0079 mg/kg, the detection rate and content of lotus root were 95.00% and 0.029 mg/kg., respectively. The method can accurately determine the contents of As (鈪，
本文编号：2384309
[Abstract]:Objective to investigate the contamination of arsenic in dietary vegetables in Jinan and to evaluate its health risk. Methods different forms of arsenic in winter vegetables were determined by liquid chromatography-atomic fluorescence spectrometry (LC-AFS), and the exposure of residents to total arsenic and inorganic arsenic through vegetable pathway was evaluated. Results A total of 120 samples of vegetables were detected, the total arsenic detection rate was 42.50, the average content of lotus root was 0.0079 mg/kg, the detection rate and content of lotus root were 95.00% and 0.029 mg/kg., respectively. The method can accurately determine the contents of As (鈪，
本文编号：2384309
本文链接：https://www.wllwen.com/yixuelunwen/yufangyixuelunwen/2384309.html
