2014
Solid phase microextraction of organic pollutants from natural and artificial soils and comparison with bioaccumulation in earthworms
BIELSKÁ, Lucie, Klára ŠMÍDOVÁ a Jakub HOFMANZákladní údaje
Originální název
Solid phase microextraction of organic pollutants from natural and artificial soils and comparison with bioaccumulation in earthworms
Autoři
BIELSKÁ, Lucie (203 Česká republika, domácí), Klára ŠMÍDOVÁ (203 Česká republika, domácí) a Jakub HOFMAN (203 Česká republika, garant, domácí)
Vydání
Ecotoxicology and Environmental Safety, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2014, 0147-6513
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.762
Kód RIV
RIV/00216224:14310/14:00073511
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000330161000007
Klíčová slova anglicky
Solid phase micro-extraction (SPME); Bioaccumulation; Artificial soil; Aging; Total organic carbon content (TOC)
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 4. 2015 13:51, Ing. Andrea Mikešková
Anotace
V originále
The presented study investigates the use of passive sampling, i.e. solid phase microextraction with polydimethylsiloxane fibers (PDMS-SPME), to assess the bioavailability of fiver neutral organic chemicals (phenanthrene, pyrene, lindane, p,p'-DDT, and PCB 153) spiked to natural and artificial soils after different aging times. Contaminant bioavailability was assessed by comparing PDMS concentrations with results from a 10 day bioaccumulation test with earthworms (Eisenia fetida). The hypotheses tested were (i) organic carbon (OC) normalization, which is commonly used to account for sorption and bioavailability of hydrophobic organic chemicals in soil risk assessment, has limitations due to differences in sorptive properties of OC and aging processes (i.e. sequestration and biodegradation) and (ii) PDMS-SPME provides a more reliable measure of soil contaminant bioavailability than OC normalized soil concentrations. The above stated hypotheses were confirmed since the results showed that: (i) the PDMS/soil organic carbon partition ratio (R) accounting for the role that OC plays in partitioning significantly differed between soils and aging times and (ii) the correlation with earthworm concentrations was better using porewater concentrations derived from PDMS concentrations than when organic normalized soil concentrations were used. Capsule: Sorption of organic compounds measured by SPME method and their bioavailability to earthworms cannot be reliably predicted using OC content.
Návaznosti
ED0001/01/01, projekt VaV |
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GAP503/10/0125, projekt VaV |
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