Title: From geochemical background determination to pollution assessment of heavy metals in sediments and soils
Authors: Dung, Tran Thi Thu *
Cappuyns, ValĂ©rie * ×
Swennen, Rudy
Phung, Nguyen Ky #
Issue Date: 2013
Publisher: Kluwer Academic Publishers
Series Title: Reviews in Environmental Science and Biotechnology vol:12 issue:4 pages:335-353
Abstract: Establishing geochemical background concentrations
to distinguish the natural background from
anthropogenic concentrations of heavy metals in sediments
and soils is necessary to develop guidelines for
environmental legislation. Due to the fact that the
background concentrations strongly depend on geological
characteristics such as mineral composition, grain
size distribution and organic matter content, several
normalization methods have been developed. Empirical
(geochemical), theoretical (statistical) and integrated
methods (combining both empirical and theoretical
methods) are themain approaches described in literature
for determination of geochemical background concentrations.
In this review paper, the different approaches as
well as the main normalization methods for heavy metalconcentrations in sediments and soils will be discussed.
Both geochemical background concentrations and
added risk level (maximum permissible addition)
should be taken into account for setting up legal
threshold limits. Moreover, different approaches to
evaluate the pollution status of heavy metals in
sediments and soils, fromSediment/SoilQuality Guidelines
to quantitative indices (Geo-accumulation Index-
Igeo, Enrichment Factor-EF, Pollution Load Index-PLI
and Risk assessment Code-RAC) will be presented.
Although guidelines to establish whether a sediment or
soil is polluted or not are generally only related to total
metal concentrations, the available/reactive pool i.e.,
availability/reactivity of metals should be taken into
account for sediment/soil pollution assessment
ISSN: 1569-1705
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
Research Centre for Economics and Corporate Sustainability, Campus Brussels
Faculty of Economics and Business (FEB) - miscellaneous
* (joint) first author
× corresponding author
# (joint) last author

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