Characterization of soil heavy metal pools in paddy fields in Taiwan: chemical extraction and solid-solution partitioning
Journal
Journal of Soils and Sediments
Journal Volume
9
Journal Issue
3
Start Page
216
End Page
228
Date Issued
2009-06
Date
2009-06
Author(s)
Abstract
Ongoing industrialization has resulted in an accumulation of metals like Cd, Cu, Cr, Ni, Zn, and Pb in paddy fields across Southeast Asia. Risks of metals in soils depend on soil properties and the availability of metals in soil. At present, however, limited information is available on how to measure or predict the directly available fraction of metals in paddy soils. Here, the distribution of Cd, Cu, Cr, Ni, Zn, and Pb in 19 paddy fields among the total, reactive, and directly available pools was measured using recently developed concepts for aerated soils. Solid-solution partitioning models have been derived to predict the directly available metal pool. Such models are proven to be useful for risk assessment and to derive soil quality standards for aerated soils.
Subjects
Availability
Contamination
Extraction methods
Heavy metals
Paddy fields
Risk assessment
Soil quality standards
Solid-solution partitioning models
SDGs
Publisher
Springer
Type
journal article