Bioavailability of POPs to earthworms in relationship with soils properties and other factors

VLČKOVÁ, Klára, Jakub HOFMAN, Lucie BIELSKÁ and Kirk T SEMPLE. Bioavailability of POPs to earthworms in relationship with soils properties and other factors. In Protection of agricultural soils against joint stress of natural and anthropogenic factors, 13 - 16 June 2011, Pulawy, Poland. In : Abstract Book p. 69-70. 2011. ISBN 978-83-7562-086-3.

Basic information

• Original name: Bioavailability of POPs to earthworms in relationship with soils properties and other factors
• Name in Czech: Biodostupnost POPs pro žížaly ve vztahu k půdním vlastnostem a dalším faktorům
• Authors: VLČKOVÁ, Klára, Jakub HOFMAN, Lucie BIELSKÁ and Kirk T SEMPLE.
• Edition: Protection of agricultural soils against joint stress of natural and anthropogenic factors, 13 - 16 June 2011, Pulawy, Poland. In : Abstract Book p. 69-70, 2011.

Other information

• Type of outcome: Conference abstract
• Confidentiality degree: is not subject to a state or trade secret
• Organization unit: Faculty of Science
• ISBN: 978-83-7562-086-3
• Keywords (in Czech): bioakumulace; žížaly; perzistentní organické polutanty; půdní vlastnosti
• Keywords in English: bioacumulation; earthworms; persistent organic pollutants; soil properties

Abstract

The close relationship between soil organic matter and bioavailability of POPs in soils suggests a possibility to use it for bioavailability extrapolation (and consequently toxicity or bioaccumulation) between different soils. However, TOC content is not a single factor affecting the bioavailability, which was verified in your and several other studies (Amorim et al., 2002; Hofman et al., 2008). Characteristics of compounds, organisms, and soils influence bioavailability and wide variability of these properties increases uncertainties for making general conclusions from individual studies. Moreover, bioavailability is affected also by time of soil-contaminant contact, so-called aging (Alexander, 2000). To study soil properties which influence availability to earthworms (Eisenia fetida), three natural soil representing the Czech Republic land resources were tested (TOC content 1.8%, 5.6%, and 12.6%). Moreover, artificial soils with the same TOC content were prepared. Soils were spiked with five model POPs (phenanthrene, pyrene, lindane, DDT, and PCB 153) and bioaccumulation and total concentration were measured during two months. Other modification of the experiment was sterilization. Extractions in DCM and HPCD were measured in some soils too.

Links

• ED0001/01/01, research and development project: Name: CETOCOEN
• GAP503/10/0125, research and development project: Name: Bioakumulace perzistentních organických kontaminantů v žížalách ve vztahu k jejich biodostupnosti v půdě

Investor: Czech Science Foundation

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)