+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Availability of heavy metals for uptake by Salix viminalis on a moderately contaminated dredged sediment disposal site



Availability of heavy metals for uptake by Salix viminalis on a moderately contaminated dredged sediment disposal site



Environmental Pollution 137(2): 354-364



Extractability of Cd, Cr, Cu, Ni, Pb, and Zn in a dredged sediment disposal site was assessed using single extraction procedures (H2O; 0.01 M CaCl2; 1 M NH4OAc; NH4OAc-EDTA; CaCl2-TEA-DTPA). Only Cd and Zn were found to exceed statutory threshold values for total content. The field was planted with Salix viminalis "Orm" and accumulation of heavy metals in bark, leaves, roots, and wood was evaluated at seven sampling locations along an observed gradient in texture and pollution. Biomass production was high, ranging from 13.2 to 17.8 t ha(-1) y(-1) dry weight. Metal accumulation in aboveground plant parts was low, amounting to the following annually extracted mass of metals per ha: 5034 g Zn, 83 g Cd, 145 g Cu, 83 g Pb, 12 g Ni and 6 g Cr. The use of accumulating clones and the use of soil amendments might enhance extraction efficiency in future research.

(PDF emailed within 0-6 h: $19.90)

Accession: 004051879

Download citation: RISBibTeXText

PMID: 15963374

DOI: 10.1016/j.envpol.2004.12.019


Related references

Availability and plant uptake of heavy metals from contaminated dredged material placed in flooded and upland disposal environments. Environment International 7(2): 65-72, 1982

Physiological and proteomic responses of different willow clones (Salix fragilis x alba) exposed to dredged sediment contaminated by heavy metals. International Journal of Phytoremediation 16(7-12): 1148-1169, 2014

Physicochemical factors regulating solubility and bio availability of toxic heavy metals in contaminated dredged sediment. Journal of Environmental Science & Health Part A Environmental Science & Engineering 12(9): 475-492, 1977

Metal availability in a highly contaminated, dredged-sediment disposal site: field measurements and geochemical modeling. Environmental Pollution 158(9): 2857-2864, 2010

Leaf responsiveness of Populus tremula and Salix viminalis to soil contaminated with heavy metals and acidic rainwater. Tree Physiology 27(11): 1517-1531, 2007

A field study on phytoremediation of dredged sediment contaminated by heavy metals and nutrients: the impacts of sediment aeration. Environmental Science and Pollution Research International 21(23): 13452-13460, 2015

Disposal of contaminated dredged sediments on land; an attempt to predict the release of heavy metals. Schriftenreihe der Deutschen Gesellschaft fuer Geowissenschaften 45: 163, 2006

Chemical decontamination: a concept for the final disposal of dredged materials and sludges contaminated by heavy metals. Heavy metals in the environment Volume 2: 948-951, 1983

Field trial setup for heavy metal removal from dredged sediments using intensive cultures of the willow Salix viminalis. Mededelingen 66(4): 141-146, 2005

Field trial setup for heavy metal removal from dredged sediments using intensive cultures of the willow Salix viminalis. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen, Universiteit Gent 66(4): 141-146, 2001

Transpiration of two willow species (Salix viminalis and Salix triandra) growing on a landfill of dredged sludge. Silva Gandavensis ( 61): 33-45, 1996

Efficiency of selected heavy metals accumulation by Salix viminalis roots. Environmental and Experimental Botany 65(1): 48-53, 2009

Seasonal changes of metals in willow (Salix sp.) stands for phytoremediation on dredged sediment. Environmental Science and Technology 40(6): 1962-1968, 2006