J 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.

Basic information

Original name

Bioavailability and toxicity of pyrene in soils upon biochar and compost addition

Authors

BIELSKÁ, Lucie (203 Czech Republic, guarantor, belonging to the institution), Mélanie Marie KAH (250 France), Gabriel SIGMUND (40 Austria), Thilo HOFMANN (40 Austria) and Sebastian HOSS (276 Germany)

Edition

Science of the Total Environment, AMSTERDAM, Elsevier, 2017, 0048-9697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.610

RIV identification code

RIV/00216224:14310/17:00100298

Organization unit

Faculty of Science

UT WoS

000401556800015

Keywords in English

Biochar; Compost; Nematodes; Pyrene toxicity; Solid-phase microextraction; Sorption

Tags

Tags

International impact, Reviewed
Změněno: 29/3/2018 11:04, Ing. Nicole Zrilić

Abstract

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.

Links

LM2015051, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX RI)
Investor: Ministry of Education, Youth and Sports of the CR
LO1214, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)
Investor: Ministry of Education, Youth and Sports of the CR