WFRF:(Hilscherová K.)
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- Macikova, P.Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech Republic (författare)
Longer-term and short-term variability in pollution of fluvial sediments by dioxin-like and endocrine disruptive compounds
- Artikel/kapitelEngelska2014
Förlag, utgivningsår, omfång ...
- 2013-12-22
- Springer Berlin/Heidelberg,2014
- printrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:oru-49778
- https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-49778URI
- https://doi.org/10.1007/s11356-013-2429-8DOI
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- Språk:engelska
- Sammanfattning på:engelska
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- Funding Agencies:Ministry of Education, Youth and Sports of Czech Republic 2B08036European Regional Development Fund CZ.1.05/2.1.00/01.0001Canada Research Chair programState Key Laboratory in Marine Pollution, City University of Hong Kong GDW20123200120State Administration of Foreign Experts Affairs, the P.R. ChinaEinstein Professor Program of the Chinese Academy of Sciences
- Changes in pollutant loads in relatively dynamic river sediments, which contain very complex mixtures of compounds, can play a crucial role in the fate and effects of pollutants in fluvial ecosystems. The contamination of sediments by bioactive substances can be sensitively assessed by in vitro bioassays. This is the first study that characterizes detailed short- and long-term changes in concentrations of contaminants with several modes of action in river sediments. One-year long monthly study described seasonal and spatial variability of contamination of sediments in a representative industrialized area by dioxin-like and endocrine disruptive chemicals. There were significant seasonal changes in both antiandrogenic and androgenic as well as dioxin-like potential of river sediments, while there were no general seasonal trends in estrogenicity. Aryl hydrocarbon receptor-dependent potency (dioxin-like potency) expressed as biological TCDD-equivalents (BIOTEQ) was in the range of 0.5-17.7 ng/g, dry mass (dm). The greatest BIOTEQ levels in sediments were observed during winter, particularly at locations downstream of the industrial area. Estrogenicity expressed as estradiol equivalents (EEQ) was in the range of 0.02-3.8 ng/g, dm. Antiandrogenicity was detected in all samples, while androgenic potency in the range of 0.7-16.8 ng/g, dm dihydrotestosterone equivalents (DHT-EQ) was found in only 30 % of samples, most often during autumn, when antiandrogenicity was the least. PAHs were predominant contaminants among analyzed pollutants, responsible, on average, for 13-21 % of BIOTEQ. Longer-term changes in concentrations of BIOTEQ corresponded to seasonal fluctuations, whereas for EEQ, the inter-annual changes at some locations were greater than seasonal variability during 1 year. The inter- as well as intra-annual variability in concentrations of both BIOTEQ and EEQ at individual sites was greater in spring than in autumn which was related to hydrological conditions in the river. This study stresses the importance of river hydrology and its seasonal variations in the design of effective sampling campaigns, as well as in the interpretation of any monitoring results.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
- Sediments; Seasonality; Monitoring; Dioxin-like potency; Estrogenicity; Antiandrogenicity
- Enviromental Science
- Miljövetenskap
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Kalabova, T.Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech Republic (författare)
- Klanova, J.Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech Republic (författare)
- Kukucka, Petr,1982-Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech Republic,MTM(Swepub:oru)pka (författare)
- Giesy, J. P.Department of Biomedical Veterinary Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon SK, Canada; Zoology Department and Centre for Integrative Toxicology, Michigan State University, East Lansing MI, USA; Department of Biology and Chemistry, City University, Hong Kong, People’s Republic of China; Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia; Environmental Science Program, Nanjing University, Nanjing, China (författare)
- Hilscherova, K.Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech Republic (författare)
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech RepublicMTM (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Environmental Science and Pollution Research: Springer Berlin/Heidelberg21:7, s. 5007-50220944-13441614-7499
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