Speciation and Sources of Toxic Metals in Sediments of Lake Chapala, Mexico

被引：0
|
作者：
Luis Trujillo-Cardenas, Juan [1 ]
Saucedo-Torres, Nereida P. [1 ]
Faustino Zarate del Valle, Pedro [1 ]
Rios-Donato, Nely [1 ]
Mendizabal, Eduardo [1 ]
Gomez-Salazar, Sergio [2 ]
机构：
[1] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Dept Quim, Guadalajara 44430, Jalisco, Mexico
[2] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Dept Ingn Quim, Guadalajara 44430, Jalisco, Mexico
来源：
JOURNAL OF THE MEXICAN CHEMICAL SOCIETY | 2010年 / 54卷 / 02期
关键词：
sediments; toxic metals; speciation; lake pollution; SURFACE-CHARGE; ORGANIC-MATTER; SUSPENDED PARTICLES; HEAVY-METALS; FRACTIONATION;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Heavy metals chemical speciation in Lake Chapala sediments was studied using sequential extraction to assess the mobility of potentially biotoxic metals and to elucidate their sources. Lake water quality was also studied. Results show Cd, Pb, Cr present in exchangeable and carbonate fractions indicating anthropogenic origin. An ecologic history indicates anthropogenic sources of Cd, Pb, Cr during 1960-2006. Risk Assessment Code indicates very high risk of pollution for water column due to high potential detachment of heavy metals.
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页码：79 / 87
页数：9
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