生物质化学工程2017，Vol.51Issue(3)：48-54,7.DOI:10.3969/j.issn.1673-5854.2017.03.008
攀西核桃中Pb累积特性分析及食用健康风险评估
Accumulation Characteristics and Eating Health Risk Assessment of Lead in Walnut from Panxi Production Areas
摘要
Abstract
The contents of lead(Pb) in the soil,bark,leaf,walnut peel,shell,and kernel in Panxi region′s walnut were determined by using the atomic absorption spectrometry to study the accumulation characteristics and consumption risk.The results showed that the contents of Pb in the soil were significantly higher than those in the organs of the walnut tree,and one of the soil samples was exceed the national standard;the contents of Pb in the leaves were significantly higher than those in the walnut peel,shell,and kernel;with the increase of Pb content in the soil,the Pb contents in bark,leaf,walnut peel,shell,and kernel didn′t show an obvious enrichment regularity,and the accumulation ability of Pb in the walnut kernel was weaker compared with the other main organs.The results of the Nemerow Index Method showed that the pollution index of Pb in the walnut kernel was less than 1,which indicated that the kernel samples of the experimental point in Panxi production base were out of Pb pollution.Referring to China′s current standards,the target risk factor of Pb in the walnut was figured out by extending the tree nuts consumption of Chinese residents to the recommended value and much lower than 1.0, which meant the content of heavy metal Pb in the edible parts of walnut was temporarily risk-free for Chinese consumers′ health.关键词
核桃/铅/累积特性/风险评估Key words
walnut/lead/accumulation characteristics/risk assessment分类
化学化工引用本文复制引用
杨学兵,吴斌,罗雅川,杨凌,张思碧,解锦华,付卓锐..攀西核桃中Pb累积特性分析及食用健康风险评估[J].生物质化学工程,2017,51(3):48-54,7.基金项目
四川省公益性科研院所基本科研项目(JB201515) （JB201515）
