Detailed Information on Publication Record
2017
Bioavailability of five hydrophobic organic compounds to earthworms from sterile and non-sterile artificial soils
ŠMÍDOVÁ, Klára, Sooyeon KIM and Jakub HOFMANBasic information
Original name
Bioavailability of five hydrophobic organic compounds to earthworms from sterile and non-sterile artificial soils
Authors
ŠMÍDOVÁ, Klára (203 Czech Republic, belonging to the institution), Sooyeon KIM (410 Republic of Korea, belonging to the institution) and Jakub HOFMAN (203 Czech Republic, guarantor, belonging to the institution)
Edition
Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2017, 0045-6535
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10511 Environmental sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.427
RIV identification code
RIV/00216224:14310/17:00100270
Organization unit
Faculty of Science
UT WoS
000401385900024
Keywords in English
Bioaccumulation factors; Artificial soil; Sterilization; Organic carbon content; Aging
Tags
International impact, Reviewed
Změněno: 29/3/2018 11:10, Ing. Nicole Zrilić
Abstract
V originále
Bioaccumulation factors (BAFs) of organic pollutants to soil biota, often required by risk assessment, are mostly obtained in non-sterile laboratory-contaminated artificial soils. However, microbial degradation has been indicated by many authors to influence the fate of hydrophobic organic compounds (HOCs) in soils. A question arises if the microbial community of peat which is used for artificial soil preparation affects the measured values of BAFs. In this study the effect of soil microorganisms on bioavailability of HOCs was studied and a portion of each soil was sterilized by gamma irradiation. Results indicated that the sterilization process significantly affected the fate of polycyclic aromatic hydrocarbons (PAHs; phenanthrene and pyrene) and increased bioavailability of these compounds to earthworms with BAFs several times higher in the sterile soils compared to their non-sterile variants. This suggests that sterilization of soils can be used as the "worst-case scenario" for laboratory tests of toxicity or bioaccumulation of biodegradable HOCs such as PAHs. It represents a situation of limited microbial degradation resulting in higher bioavailable fractions to other organisms (e.g. invertebrates). This may be the case in soils where microbial communities face stresses caused by contamination or land management. The bioavailability of chlorinated HOCs (lindane, 4,4'-DDT and PCB 153) was not affected by sterilization, as their BAFs were similar in the sterile and non-sterile soils during the experiment.
Links
LM2015051, research and development project |
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LO1214, research and development project |
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