期刊
JOURNAL OF GEOCHEMICAL EXPLORATION
卷 147, 期 -, 页码 260-267出版社
ELSEVIER
DOI: 10.1016/j.gexplo.2014.09.003
关键词
Parent material; Anthropogenic activities; Baseline concentrations
资金
- Institution Gran Duque de Alba of Exma Diputacion de Avila
- Universidad catolica de Avila (UCAV) aid programme
- Asociacion de amigos de la UCAV
- Regional Government Junta de Castilla y Leon [UCA01A07]
- Spanish government-MICINN [CGL2006-09776, AGL2011-29382]
The total, water soluble and extractable concentrations with EDTA of As from topsoils from the Ambles Valley (Avila, Spain) were determined. The geochemical baseline concentrations of total As were established, and the relationships between the concentration of the different As forms and soil properties were investigated. Total As content in soils was related with parent material, whereas anthropogenic activities affected its mobility. Iron, aluminium, clay content, soil organic matter and soil pH were the main controlling factors for As soil concentrations. The geochemical baseline concentrations obtained (mg kg(-1)) were 7.3-35 in soils on granite parent material and 2.2-6.8 in soils on alluvium-colluvium parent material for total As. The baseline concentration values for the water soluble and EDTA extractable As forms were also established. For water soluble As, the baseline concentrations (mg kg-1) were 0.06 for natural soils and 0.37 for agricultural and industrial soils, respectively, and the baseline concentrations for As extractable with EDTA were 0.39 mg kg(-1). (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据