2005
Laboratory testing of persistent organic pollutants toxicity on soil microbial biomass - application limits, drawbacks and benefits
ČERNOHLÁVKOVÁ, Jitka a Jakub HOFMANZákladní údaje
Originální název
Laboratory testing of persistent organic pollutants toxicity on soil microbial biomass - application limits, drawbacks and benefits
Název česky
Laboratorní testování toxicity perzistentních organických polutantů na půdních mikroorganismech - výhody a limity
Autoři
ČERNOHLÁVKOVÁ, Jitka (203 Česká republika) a Jakub HOFMAN (203 Česká republika, garant)
Vydání
Abstract Book of SETAC Europe the 15th Annual Meeting. 2005
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10511 Environmental sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/05:00013141
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
microbial biomass; laboratory test; persistent organic pollutants
Příznaky
Mezinárodní význam
Změněno: 24. 2. 2010 21:58, prof. RNDr. Jakub Hofman, Ph.D.
V originále
Soil toxicity test with indigenous microflora is based on laboratory incubation of well defined natural soil which was spiked with tested chemical at the beginning of the test. Changes in microbial biomass, its respiration and nitrogen mineralization are recorded as effect endpoints. This method is well standardized under OECD, US EPA and SETAC guidelines for testing chemicals and pesticides. In our study, selected persistent organic pollutants were tested to identify the applicability of the tests for POPs effects routine testing. Selected POPs were: toxaphene (pesticide), short chain chlorinated paraffin (industrial chemical), and four aza-PAHs (industrial by-product). Microbial biomas Cbio, basal respiration (BR), substrate induced respiration (SIR), and BIOLOG functional diversity were measured as endpoints after 2 weeks and 4 weeks of exposure. The most sensitive parameter was substrate induced respiration. Several principal problems were found for FE method for measuring microbial biomass Cbio due to high carbon amount in POPs. Despite all these practical disadvantages, microbial biomass parameters are crucial ecosystem indicators and their information value requires to be considered during POPs ecotoxicity evaluation.
Česky
viz angl.
Návaznosti
| GP525/04/P159, projekt VaV |
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| MSM0021622412, záměr |
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