2016
Predicting the bioaccumulation of polyaromatic hydrocarbons and polychlorinated biphenyls in benthic animals in sediments
TUIKKA, A.I., M.T. LEPPANEN, J. AKKANEN, A.J. SORMUNEN, P.E.G. LEONARDS et. al.Základní údaje
Originální název
Predicting the bioaccumulation of polyaromatic hydrocarbons and polychlorinated biphenyls in benthic animals in sediments
Autoři
TUIKKA, A.I. (246 Finsko), M.T. LEPPANEN (246 Finsko), J. AKKANEN (246 Finsko), A.J. SORMUNEN (246 Finsko), P.E.G. LEONARDS (528 Nizozemské království), B. VAN HATTUM (528 Nizozemské království), L.A. VAN VLIET (528 Nizozemské království), W. BRACK (528 Nizozemské království), Foppe SMEDES (528 Nizozemské království, garant, domácí) a J.V.K. KUKKONEN (246 Finsko)
Vydání
Science of the Total Environment, AMSTERDAM, Elsevier, 2016, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.900
Kód RIV
RIV/00216224:14310/16:00093458
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000377792800042
Klíčová slova anglicky
PAH; PCB; Black carbon; Equilibrium passive sampling; Bioconcentration factor; Lumbriculus variegatus
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 4. 2017 15:27, Ing. Andrea Mikešková
Anotace
V originále
There were two main objectives in this study. The first was to compare the accuracy of different prediction methods for the chemical concentrations of polyaromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in the organism, based on the measured chemical concentrations existing in sediment dry matter or pore water. The predicted tissue concentrations were compared to the measured ones after 28-day laboratory test using oligochaeta worms (Lumbriculus variegatus). The second objective was to compare the bioaccumulation of PAHs and PCBs in the laboratory test with the in situ bioaccumulation of these compounds. Using the traditional organic carbon-water partitioning model, tissue concentrations were greatly overestimated, based on the concentrations in the sediment dry matter. Use of an additional correction factor for black carbon with a two-carbon model, significantly improved the bioaccumulation predictions, thus confirming that black carbon was important in binding the chemicals and reducing their accumulation. The patterns of PCB and PAH accumulation in sediments for laboratory-exposed L. variegatus were similar to those in field-collected Lumbriculidae worms. Field-collected benthic invertebrates and L. variegatus accumulated less PAHs than PCBs with similar lipophilicity. The biota to sediment accumulation factors of PAHs tended to decrease with increasing sediment organic carbon normalized concentrations. The presented data yields bioconcentration factors (BCF) describing the chemical water-lipid partition, which were found to be higher than the octanol-water partition coefficients, but on a similar level with BCFs drawn from relevant literature. In conclusion, using the two-carbon model method, or the measured freely dissolved pore water concentrations method is recommended for predicting the bioaccumulation of PAHs and PCBs.
Návaznosti
LM2015051, projekt VaV |
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LO1214, projekt VaV |
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