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Artificial Cs-137 and Cs-134 and natural K-40 in sclerotia of Wolfiporia extensa fungus collected across of the Yunnan land in China

文献类型： 外文期刊

作者： Wang, Yuanzhong 1 ; Zalewska, Tamara 2 ; Apanel, Anna 2 ; Zhang, Ji 1 ; Mackiewicz, Zbigniew 3 ; Wiejak, Anna 3 ; Fala 1 ;

作者机构： 1.Yunnan Acad Agr Sci, Inst Med Plants, Kunming, Peoples R China

2.Natl Res Inst, Maritime Branch Waszyngtona, Inst Meteorol & Water Management, Gdynia, Poland

3.Univ Gdansk, PL-80308 Gdansk, Poland

关键词： forest;wild foods;radiocesium;fungi;Foods;Poria cocos

期刊名称：JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES （ 影响因子：1.99； 五年影响因子：2.116 ）

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收录情况： SCI

摘要： Dried sclerotia of Wolfiporia extensa has a long history of medicinal and grocery uses in Asia and elsewhere. This study aimed at providing and evaluating data on activity concentrations from artificial Cs-137 and Cs-134 radionuclides and natural K-40 in sclerotia collected across of the Yunnan land in China, which is generally lacking information. Sclerotia of W. extensa showed a low contamination with Cs-137 while Cs-134 was below limit of quantification. Estimated, the nominal value of effective dose (mu Sv) received by adult eating annually 50g of the 'average' Yunnan's origin sclerotia contained in the 'Fuling jiabing' snack due to Cs-137 could be between < 0.00091 and 0.0047 +/- 0.0007 mu Sv per capita and at < 0.000015 to 0.000078 +/- 0.000012 mu Sv per kg of body mass, which is a very low exposure. This study has revealed also that sclerotia of W. extensa are characterized by very low content of K-40 (hence also of total K) when compared to fruiting bodies of many saprobic and mycorrhizal mushrooms.

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