Selenium Speciation and Mobility in Soil-An Overview

摘要：

Selenium (Se) is a naturally occurring trace element in soils with concentrations varying from below 0.1 to 10 (μg g~(-1) or above; although Se concentrations as high as 1200 mg kg~(-1) have been reported in some seleniferous regions. At low intake levels,Se is an essential micronutrient for both human beings and animals,but high levels of dietary intake or ingestion can result in Se toxicity. The mobility and bioavailability of se and its toxicity to the biosphere are related to its association with various soil constituents rather than to its total concentration.

作者: K.S.Dhillon

作者单位: Department of Soils,Punjab Agricultural University,Ludhiana 141004,India

会议类型: 国际会议

会议名称: The First International Conference on Selenium in the Environment and Human Health(第一届硒与环境和人体健康国际会议)

会议地点: 苏州

会议语种:英文

页码: 5-6

在线出版日期: 2009-10-01（万方平台首次上网日期，不代表论文的发表时间）