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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Mercury contents in mushrooms growing nearby Horní Slavkov
 Říhová, Štěpánka ; Svoboda, Lubomír (advisor) ; Tondl, František (referee)
In the seventies it was discovered, that many species of wild higher fungi accumulates in their fruiting bodies some potentially hazardous elements in amounts significantly higher, than any other ecosystem cells, respectively eatables. For the most risky elements especially cadmium and mercury are considered. The aim of my rigorous paper was to determine mercury content in the fruiting bodies of mushrooms growing in the area with an extremely rich history of mining and processing of metal ores (mostly tin). Mushroom samples were collected (from July 2005 to September 2006) from two sites near the village of Krásno close Horní Slavkov. Mercury was analyzed in 130 samples of 13 edible mushroom species. Only fully developed fruiting bodies were selected for the analysis, each represented a separate sample. It was also carried out a comparative test, detecting effect of fungal cleansing on the kontent of mercury. Mercury was determined in homogenized samples on a single-atomic absorption spectrometer AMA -254, which uses the technique of atomizing cold vapor generation of mercury with subsequent capture on a gold amalgamator. The content of mercury in the fruiting bodies of the monitored area was very well comparable to the normal state in areas without mining. In point of harmful character of mercury,...
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