Long-term ¹³⁷Cs activity monitoring of mushrooms in forest ecosystems of the Czech Republic
Jazyk angličtina Země Velká Británie, Anglie Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
23838098
DOI
10.1093/rpd/nct172
PII: nct172
Knihovny.cz E-zdroje
- MeSH
- Agaricales chemie MeSH
- černobylská havárie MeSH
- dávka záření MeSH
- ekosystém MeSH
- kontaminace potravin MeSH
- kořeny rostlin mikrobiologie MeSH
- monitorování radiace metody MeSH
- radioaktivní kontaminace potravin analýza MeSH
- radioaktivní látky znečišťující půdu analýza MeSH
- radioizotopy cesia analýza MeSH
- radiometrie MeSH
- regresní analýza MeSH
- stromy * MeSH
- těžké kovy chemie MeSH
- vystavení vlivu životního prostředí MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
- Názvy látek
- radioaktivní látky znečišťující půdu MeSH
- radioizotopy cesia MeSH
- těžké kovy MeSH
This paper reports on results of activity mass concentration analyses performed in various forest mushrooms in the Czech Republic within 1986 and 2011. The estimated effective half-life of (137)Cs and its environmental half-life (i.e. the effective half-life minus the effect of physical decay) were found to be 5.6 ± 0.6 and 6.9 ± 0.7 y, respectively. Non-homogeneity in (137)Cs surface contamination over the country's territory and fungus species-based (137)Cs accumulation capacity then account for a span of up to 4 orders of magnitude in activity mass concentrations measured each year after the Chernobyl accident. The highest geometric activity mass concentration (Bq kg(-1) of dry weight) means of (137)Cs (obtained from samples between years 2004 and 2011) were measured in Suillaceae (1050 Bq kg(-1)) and Boletus badius (930 Bq kg(-1)), the lowest in Agaricus (1 Bq kg(-1)). The geometric mean of all mushrooms amounted to 230 Bq kg(-1), being 440 Bq kg(-1) in Boletales, 150 Bq kg(-1) in Russulales and 21 Bq kg(-1) in Agaricales. Geometric standard deviation levels were generally high. The highest Cs accumulation capacity was observed in Boletales (namely in Suillaceae), while the lowest in Agaricales, being over 3 orders of magnitude lower than in Suillaceae.
Citace poskytuje Crossref.org
Radioactivity in mushrooms from selected locations in the Bohemian Forest, Czech Republic