攀枝花地区不同种样品锰形态差异探究  

Discussion on Mn Fractionations in Soil,Dust and Mineral in Panzhihua

作　　者：边静虹 杨金燕[1] 樊灏 唐亚[1] 

机构地区：[1]四川大学建筑与环境学院,成都610025

出　　处：《工业安全与环保》2014年第8期35-37,共3页Industrial Safety and Environmental Protection

基　　金：科技部中欧科技合作项目(2011DFA101222);国家自然科学基金(41101484);高等学校学科创新引智计划(B08037)

摘　　要：采用Tessier法与Wenzel法研究攀枝花地区不同种样品中重金属锰(Mn)的含量及形态分布差异,分析不同样品Mn的生物有效性及两种方法各形态Mn含量的相关性。结果表明,Mn全量顺序为公路灰尘>钒钛磁铁矿矿石>钒钛磁铁矿尾矿>水稻土>紫色土。两种方法测得样品中Mn均以残渣态为主;残渣态Mn含量占全量百分比顺序为供试矿物样品>灰尘样品>土壤样品。结合各形态Mn迁移性及生物可给性分析样品中锰的生物有效性顺序为:供试紫色土>水稻土>道路灰尘>钒钛磁铁矿矿石>钒钛磁铁矿尾矿。This paper studies the differences of Mn fractionations in soil ,dust and mineral by Tessier’s method and Wen-zel’s method .The biological effectiveness of different sampled Mn is analyzed ,as well as the positive correlations of some fractionations of the two methods .The total content of Mn in five tested samples follows ：road dust〉vanadium titanium mag-netite ore〉vanadium titanium magnetite tailing 〉 paddy soil〉purple soil .The main form of Mn in all samples tested by both methods shows residual and the proportion of residual Mn to total Mn follows ：mineral samples〉 dust samples〉 soil samples .Based on the mobility and bioaccessiblity of Mn in each fractionation ,it indicates that the bioavailability of Mn is highest in soil samples ,followed by dust samples and with the lowest in mineral samples .

关 键 词：锰 形态分级 土壤 灰尘 矿物 

分 类 号：X830[环境科学与工程—环境工程]