Heavy metal phytoremediation from a meta-analytical perspective

Audet, Patrick and Charest, Christiane (2007) Heavy metal phytoremediation from a meta-analytical perspective. Environmental Pollution, 147 1: 231-237. doi:10.1016/j.envpol.2006.08.011


Author Audet, Patrick
Charest, Christiane
Title Heavy metal phytoremediation from a meta-analytical perspective
Journal name Environmental Pollution   Check publisher's open access policy
ISSN 0269-7491
1873-6424
Publication date 2007-05
Sub-type Article (original research)
DOI 10.1016/j.envpol.2006.08.011
Volume 147
Issue 1
Start page 231
End page 237
Total pages 17
Place of publication Oxford, United Kingdom
Publisher Pergamon
Language eng
Abstract We conducted a literature survey and correlated heavy metal (HM) uptake and plant growth factors from published data to estimate the effectiveness of phytoextraction. The indicators of the actual plant HM uptake showed positive correlations with soil-HM concentrations, while the relative plant HM uptake showed negative correlations. Plant growth was negatively correlated with both the plant and soil-HM concentrations. These significant relationships were found for the majority of HM tested (e.g. Zn, Cd, Pb, Cu, Cr, and Fe) with a few exceptions (e.g. Ni, Co, and Mn). After fitting the correlation coefficients, the highest proportion of variance among the studies was mainly due to the experimental parameters or the plant species. When the metabolic costs of HM uptake are taken into account, the phytoextraction appears to be less effective beyond critical HM concentrations. Despite these constraints, it is emphasized that HM phytoextraction can play an important role in bioremediation.
Keyword Bioconcentration factor
Specific extraction yield
Tolerance index
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Mined Land Rehabilitation Publications
ERA 2012 Admin Only
 
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Created: Tue, 07 Feb 2012, 11:15:26 EST by Dr Patrick Audet on behalf of Centre For Mined Land Rehabilitation