Long-term 137Cs activity monitoring of mushrooms in forest ecosystems of the Czech Republic

摘要: This paper reports on results of activity mass concentration analyses performed in various forest mushrooms the Czech Republic within 1986 and 2011. The estimated effective half-life (137)Cs its environmental (i.e. minus effect physical decay) were found to be 5.6 ± 0.6 6.9 0.7 y, respectively. Non-homogeneity surface contamination over country's territory fungus species-based accumulation capacity then account for a span up 4 orders magnitude concentrations measured each year after Chernobyl accident. highest geometric (Bq kg(-1) dry weight) means (obtained from samples between years 2004 2011) Suillaceae (1050 Bq kg(-1)) Boletus badius (930 kg(-1)), lowest Agaricus (1 kg(-1)). mean all amounted 230 kg(-1), being 440 Boletales, 150 Russulales 21 Agaricales. Geometric standard deviation levels generally high. Cs was observed Boletales (namely Suillaceae), while Agaricales, 3 lower than Suillaceae.