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@article{1419098,
author = {Škulcová, Lucia and BrandstätterandScherr, Kerstin and Chrást, Lukáš and Hofman, Jakub and Bielská, Lucie},
article_location = {San Diego (CA) USA},
article_number = {July},
doi = {http://dx.doi.org/10.1016/j.ecoenv.2018.02.061},
keywords = {Sorption; Soil sterilization; gamma-irradiation; Soil spiking; DDE; SFE; XAD; SPME},
language = {eng},
issn = {0147-6513},
journal = {Ecotoxicology and Environmental Safety},
title = {Influence of soil gamma-irradiation and spiking on sorption of p,p'-DDE and soil organic matter chemistry},
url = {https://www.sciencedirect.com/science/article/pii/S0147651318301532?via%3Dihub},
volume = {155},
year = {2018}
}
TY - JOUR
ID - 1419098
AU - Škulcová, Lucia - Brandstätter-Scherr, Kerstin - Chrást, Lukáš - Hofman, Jakub - Bielská, Lucie
PY - 2018
TI - Influence of soil gamma-irradiation and spiking on sorption of p,p'-DDE and soil organic matter chemistry
JF - Ecotoxicology and Environmental Safety
VL - 155
IS - July
SP - 125-132
EP - 125-132
PB - ACADEMIC PRESS INC ELSEVIER SCIENCE
SN - 01476513
KW - Sorption
KW - Soil sterilization
KW - gamma-irradiation
KW - Soil spiking
KW - DDE
KW - SFE
KW - XAD
KW - SPME
UR - https://www.sciencedirect.com/science/article/pii/S0147651318301532?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S0147651318301532?via%3Dihub
N2 - The fate of organic chemicals and their metabolites in soils is often investigated in model matrices having undergone various pre-treatment steps that may qualitatively or quantitatively interfere with the results. Presently, effects associated with soil sterilization by gamma-irradiation and soil spiking using an organic solvent were studied in one freshly spiked soil (sterilization prior to contamination) and its field-contaminated (sterilization after contamination) counterpart for the model organic compound 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene (p,p'-DDE). Changes in the sorption and potential bioavailability of spiked and native p,p'-DDE were measured by supercritical fluid extraction (SFE), XAD-assisted extraction (XAD), and solid-phase microextraction (SPME) and linked to qualitative changes in soil organic matter (SOM) chemistry measured by diffuse reflectance infrared Fourier-transform (DRIFT) spectroscopy. Reduced sorption of p,p'-DDE detected with XAD and SPME was associated more dearly with spiking than with sterilization, but SFE showed a negligible impact. Spiking resulted in an increase of the DRIFT-derived hydrophobicity index, but irradiation did not. Spectral peak height ratio descriptors indicated increasing hydrophobicity and hydrophilicity in pristine soil following sterilization, and a greater reduction of hydrophobic over hydrophilic groups as a consequence of spiking. In parallel, reduced sorption of p,p'-DDE upon spiking was observed. Based on the present samples, gamma-irradiation appears to alter soil sorptive properties to a lesser extent when compared to common laboratory processes such as spiking with organic solvents.
ER -
ŠKULCOVÁ, Lucia, Kerstin BRANDSTÄTTER-SCHERR, Lukáš CHRÁST, Jakub HOFMAN and Lucie BIELSKÁ. Influence of soil gamma-irradiation and spiking on sorption of p,p'-DDE and soil organic matter chemistry. \textit{Ecotoxicology and Environmental Safety}. San Diego (CA) USA: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2018, vol.~155, July, p.~125-132. ISSN~0147-6513. Available from: https://dx.doi.org/10.1016/j.ecoenv.2018.02.061.
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