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@article{1410519,
author = {Bielská, Lucie and Kah, Mélanie Marie and Sigmund, Gabriel and Hofmann, Thilo and Hoss, Sebastian},
article_location = {AMSTERDAM},
article_number = {October},
doi = {http://dx.doi.org/10.1016/j.scitotenv.2017.03.230},
keywords = {Biochar; Compost; Nematodes; Pyrene toxicity; Solid-phase microextraction; Sorption},
language = {eng},
issn = {0048-9697},
journal = {Science of the Total Environment},
title = {Bioavailability and toxicity of pyrene in soils upon biochar and compost addition},
url = {https://www.sciencedirect.com/science/article/pii/S0048969717307611?via%3Dihub},
volume = {595},
year = {2017}
}
TY - JOUR
ID - 1410519
AU - Bielská, Lucie - Kah, Mélanie Marie - Sigmund, Gabriel - Hofmann, Thilo - Hoss, Sebastian
PY - 2017
TI - Bioavailability and toxicity of pyrene in soils upon biochar and compost addition
JF - Science of the Total Environment
VL - 595
IS - October
SP - 132-140
EP - 132-140
PB - Elsevier
SN - 00489697
KW - Biochar
KW - Compost
KW - Nematodes
KW - Pyrene toxicity
KW - Solid-phase microextraction
KW - Sorption
UR - https://www.sciencedirect.com/science/article/pii/S0048969717307611?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S0048969717307611?via%3Dihub
N2 - 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.
ER -
BIELSKÁ, Lucie, Mélanie Marie KAH, Gabriel SIGMUND, Thilo HOFMANN and Sebastian HOSS. Bioavailability and toxicity of pyrene in soils upon biochar and compost addition. \textit{Science of the Total Environment}. AMSTERDAM: Elsevier, vol.~595, October, p.~132-140. ISSN~0048-9697. doi:10.1016/j.scitotenv.2017.03.230. 2017.
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