PMID- 17571681
OWN - NLM
STAT- MEDLINE
DCOM- 20070710
LR  - 20190917
IS  - 0730-7268 (Print)
IS  - 0730-7268 (Linking)
VI  - 26
IP  - 6
DP  - 2007 Jun
TI  - Uptake, accumulation, phytotoxicity, and removal of 2,4-dichlorophenol in willow 
      trees.
PG  - 1165-71
AB  - The relation between uptake, accumulation, toxicity and removal of 
      2,4-dichlorophenol (2,4-DCP) in willow trees (Salix viminalis) and the 
      feasibility of implementing phytoremediation as a treatment method for 2,4-DCP 
      contamination in wastewater and soil were investigated. Willows were exposed to 
      various 2,4-DCP concentrations between 5 and 150 mg/L in hydroponic solution and 
      between 9.1 and 44.4 mg/L in sand under constant illumination. The transpiration 
      of the trees was used to determine toxic effects. In both hydroponic solution and 
      sand, severe inhibition of transpiration started approximately at 2,4-DCP 
      concentrations of 20 mg/L. Accumulation in willows was increased with higher 
      concentrations. In surviving trees, the loss of chemical from the system was 
      above 65%. In experiments performed without trees, the mass loss of 2,4-DCP was 
      only 8 to 14%. For trees with detached roots, there was a significantly higher 
      amount of 2,4-DCP remaining in the nutrient solution at the end of the experiment 
      compared to experiments with the intact trees. The results indicate that 
      degradation in the root zone, either by root cells or associated microorganisms, 
      is the main reason for the removal of 2,4-DCP from the media. Phytoremediation of 
      2,4-DCP with willow trees does not seem to be a remediation option because of its 
      high toxicity to trees and the limited removal efficiency.
FAU - Ucisik, Ahmed Suheyl
AU  - Ucisik AS
AD  - Institute of Environment and Resources, Technical University of Denmark, 
      Bygningstorvet 115, DK-2800 Kgs. Lyngby, Denmark. asu@er.dtu.dk
FAU - Trapp, Stefan
AU  - Trapp S
FAU - Kusk, Kresten Ole
AU  - Kusk KO
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Environ Toxicol Chem
JT  - Environmental toxicology and chemistry
JID - 8308958
RN  - 0 (Chlorophenols)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Chlorophenols/isolation & purification/*metabolism/toxicity
MH  - Dose-Response Relationship, Drug
MH  - Environmental Restoration and Remediation/methods
MH  - Plant Roots/metabolism
MH  - Salix/drug effects/*metabolism
EDAT- 2007/06/19 09:00
MHDA- 2007/07/11 09:00
CRDT- 2007/06/19 09:00
PHST- 2007/06/19 09:00 [pubmed]
PHST- 2007/07/11 09:00 [medline]
PHST- 2007/06/19 09:00 [entrez]
AID - 10.1897/06-353r1.1 [doi]
PST - ppublish
SO  - Environ Toxicol Chem. 2007 Jun;26(6):1165-71. doi: 10.1897/06-353r1.1.