2017
Bioavailability and toxicity of pyrene in soils upon biochar and compost addition
BIELSKÁ, Lucie, Mélanie Marie KAH, Gabriel SIGMUND, Thilo HOFMANN, Sebastian HOSS et. al.Základní údaje
Originální název
Bioavailability and toxicity of pyrene in soils upon biochar and compost addition
Autoři
BIELSKÁ, Lucie (203 Česká republika, garant, domácí), Mélanie Marie KAH (250 Francie), Gabriel SIGMUND (40 Rakousko), Thilo HOFMANN (40 Rakousko) a Sebastian HOSS (276 Německo)
Vydání
Science of the Total Environment, AMSTERDAM, Elsevier, 2017, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.610
Kód RIV
RIV/00216224:14310/17:00100298
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000401556800015
Klíčová slova anglicky
Biochar; Compost; Nematodes; Pyrene toxicity; Solid-phase microextraction; Sorption
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 3. 2018 11:04, Ing. Nicole Zrilić
Anotace
V originále
The study investigates the role of biochar and/or compost in mitigating the toxic effects of pyrene in soils using reproduction of nematodes and porewater concentration as measures of pyrene toxicity and bioavailability, respectively. Two soils were spiked with increasing levels of pyrene to achieve a concentration-response relationship for the reproduction of Caenorhabditis elegans. The observed EC50 values (pyrene concentration causing 50% inhibition of reproduction) were 14mg/kg and 31mg/kg (drymass) for these soils, corresponding to equilibrium porewater concentrations of 37 mu g/L and 47 mu g/L, respectively. Differences in organic carbon content were not sufficient to explain the variability in toxicity between the different soils. Soils causing a significant inhibition of reproduction were further amended with 10%-compost, 5%-biochar, or both, and the effects on reproduction and porewater concentration determined. Combined addition of compost and biochar was identified as the most effective strategy in reducing pyrene concentration in soil porewater, which was also partly reflected in soil toxicity. However, porewater concentrations predicted only 52% of pyrene toxicity to nematodes, pointing to particle-bound or dietary exposure pathways. Capsule: Amending pyrene-spiked soil with biochar and compost effectively reduced pyrene porewater concentrations and toxicity to nematodes, which were significantly related.
Návaznosti
LM2015051, projekt VaV |
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