Naslov
137Cs in mushrooms from Croatia sampled 15 to 30 years after Chernobyl

Autori
Tucaković, Ivana ; Barišić, Delko ; Grahek, Željko ; Kasap, Ante ; Širić, Ivan

Izvornik
Journal of environmental radioactivity (0265-931X) 181 (2018); 147-151

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
radiocaesium, fungus, mycorrhizal, saprotrophic, bioindicator, Hydnum repandum

Sažetak
The aim of this study was to select species with higher potential to accumulate 137Cs among the available mushroom species, by determining the activity concentrations of 137Cs in mushrooms collected along north and north- western part of Croatia. A total of 55 samples of 14 different species were analyzed and the potential of mycorrhizal and saprotrophic species to accumulate 137Cs was compared. A wide range of the dry weight activity concentrations of 137Cs was detected, ranging from 0.95 to 1210 Bq/kg (154 Bq/kg mean value ; 52.3 Bq/kg geometric mean) in mycorrhizal and 1.05 – 36.8 Bq/kg (8.90 Bq/kg mean value ; 5.49 Bq/kg geometric mean) in saprotrophic species. Statistical analyses showed that mycorrhizal species accumulate significantly higher concentrations of 137Cs and thus could perform better as long-term bioindicators of environmental pollution by radioceasium then saprotrophic species. The comparison of Boletus sp. and Hydnum repandum (both mycorrhizal species commonly found in Croatia) showed, in general order of magnitude, higher accumulation in Hydnum repandum. Clearly, mushrooms, especially mycorrhizal species, can be used as significant indicators even decades after the occurrence of any serious 137Cs contamination event. However, as a wide range of values indicates that various parameters may influence the total uptake of the 137Cs into the mushroom fruit bodies, it is necessary to emphasize that 137Cs activity detected in a single mushroom sample is very site-specific.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti

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