摘要
砷是环境中普遍存在的一种化学元素,近年来日益严重的砷污染问题在世界范围内受到高度重视,我国目前已经成为世界卫生组织(WHO)列出的砷污染最严重的国家和地区之一.经口摄入是外界砷进入人体并累积产生生物毒性的主要途径.可食植物是人类饮食结构中不可缺少的部分,食品总砷含量并不能完全决定其毒性大小,砷的赋存形态与其生物毒性密切相关,无机砷已被确认为致癌物质.本文主要综述了不同种类可食植物中砷形态的分析方法,以及砷的主要赋存形态及其生物毒性.
Arsenic （As） is a ubiquitous chemical element in environment,and the increasingly serious As pollution is highly concerned all over the world.China has been considered as one of the countries and regions with serious As pollution in the world by the World Health Organization （WHO）.Recent studies indicated that food is one of the major contributors of As in human diets.Edible plants are essential in the diet structure in human life,which often contain high level of As.However,the total As in food can not exactly reflect the toxicity of As,while As speciation closely relates to the As bio-toxicity.Inorganic arsenic is verified as the carcinogen based on human epidemiological data.This paper reviewed the As species in edible plants,their bio-toxicity,and analytical methods.
出处
《应用生态学报》
CAS
CSCD
北大核心
2010年第7期1883-1891,共9页
Chinese Journal of Applied Ecology
基金
河北省自然科学基金项目(C2009000590)
国家科技支撑计划项目(2006BAI09B03)资助
关键词
可食植物
砷形态
分析方法
生物毒性
edible plant
arsenic speciation
analytical method
biological toxicity
