Volume 12 Part 2 Article 60
Title: Accumulation of 137Cs in Fruit Bodies of Edible Fungi – a Comparison between Wild and Cultivated Mushrooms
Authors: K. Haselwandter and M. Berreck
It is well documented that fungi accumulate radionuclides such as 137Cs in their fruit bodies (cf. Grüter, 1967, 1971; Rohleder, 1967; Johnson and Nayfield, 1970; Haselwandter, 1978; Seeger and Schweinshaut, 1981; Eckl et al., 1986). This behaviour seems to be species-specific rather than site-specific (Haselwandter, 1978). Before the accident at Chernobyl, the highest concentration of 137Cs (up to 25.2 Bq per g dry weight) was found in fruit bodies of Cortinarius armillatus (Haselwandter 1977).
After the accident at Chernobyl on April 26th, 1986, the radiocesium content of fruit bodies of various fungal species was determined in different European countries (see, for example, for Germany: Gans, 1986, 1987; Elstner et al., 1987; Rückert and Diehl, 1987; Netherlands: Kuyper, 1987; Finland: Rantavaara, 1987; Italy: Haselwandter and Berreck, 1988; Austria: Attarpour et al., 1987; Haselwandter et al., 1988; Jugoslavia: Byrne, 1988). Radioanalysis of fungal fruit bodies representing a set of various species revealed a significant increase in the radiocesium content after the Chernobyl accident in comparison to the situation before (Haselwandter et al., 1988).
In this study, we will concentrate on edible fungi, and report on the 137Cs content of cultivated mushrooms in comparison to that of Cantharellus cibarius sampled from the same market. In addition, we will compare the radiocesium content of wild and edible mushrooms collected in Austria and Germany in 1986. Furthermore, the radiocesium content of samples of wild mushrooms taken in 1986 will be compared with that of samples from 1987. The results will be discussed in relation to the possible radiation burden for man from the consumption of edible fungi.Please login to download the PDF for this proceeding.