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Saniewski M, Falandysz J, Zalewska T. 137Cs and 40K activity concentrations in edible wild mushrooms from China regions during the 2014–2016 period. FOODS AND RAW MATERIALS 2022. [DOI: 10.21603/2308-4057-2022-1-86-96] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction. Contamination by radiocaesium of edible wild mushrooms after major nuclear accidents is a long-lasting process in some regions of the world. Following greater awareness of radioactive pollution in Asia, particularly after the Fukushima accident, this study investigated the radioactivity of 137Cs and 40K contamination in edible wild mushrooms in China.
Study objects and methods. The objects of the research were edible wild mushrooms collected during 2014 to 2016, from the Inner Mongolian and Yunnan regions of China. To obtain an insight into any environmental impacts to distant regions of mainland Asia, the mushrooms were analyzed for 137Cs activity. In parallel, the natural activity of 40K was also determined and used to estimate the content of total K. The topsoil underneath the mushrooms was also investigated from a few sites in Bayanhushu in Inner Mongolia in 2015.
Results and discussion. The results showed that in 4 to 6 mushrooming seasons after the accident, mushrooms from both regions were only slightly contaminated with 137Cs, which implied negligible consequences. The activity concentrations of 137Cs in dried caps and whole mushrooms in 63 of 70 lots from 26 locations were well below 20 Bq kg–1 dry weight. Two species (Lactarius hygrophoroides L. and Lactarius volemus L.), from Jiulongchi in Yuxi prefecture showed higher 137Cs activities, from 130 ± 5 to 210 ± 13 Bq kg–1 dw in the caps. 40K activities of mushrooms were around two- to three-fold higher. A composite sample of topsoil (0–10 cm layer) from the Bayanhushu site (altitude 920 m a.s.l.) in Inner Mongolia showed 137Cs activity concentration at a low level of 6.8 ± 0.7 Bq kg–1 dw, but it was relatively rich in potassium (40K of 595 ± 41 Bq kg–1 and total K of 17000 ± 1000 mg kg–1 dw).
Conclusion. Wild mushrooms from the Yunnan and Inner Mongolia lands only slightly affected with radioactivity from artificial 137Cs. Lack of 134Cs showed negligible impact from Fukushima fallout. Ionizing radiation dose from 137Cs in potential meals was a fraction of 40K radioactivity. The associated dietary exposure to ionizing irradiation from 137Cs and 40K contained in mushrooms from the regions studied was considered negligible and low, respectively. Mushroom species examined in this study are a potentially good source of dietary potassium.
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Affiliation(s)
- Michał Saniewski
- Institute of Meteorology and Water Management – National Research Institute
| | | | - Tamara Zalewska
- Institute of Meteorology and Water Management – National Research Institute
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Falandysz J, Meloni D, Fernandes AR, Saniewski M. Effect of drying, blanching, pickling and maceration on the fate of 40K, total K and 137Cs in bolete mushrooms and dietary intake. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:742-754. [PMID: 34338984 PMCID: PMC8724179 DOI: 10.1007/s11356-021-15523-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
The effects of blanching, blanching and pickling and maceration on the leaching of 137Cs and 40K from the flesh of three edible bolete mushroom species-Boletus edulis, Leccinum scabrum and Leccinum versipelle-were investigated. Significant (p < 0.05) decreases in activity were observed but varied depending on the treatment. Relative to fresh mushrooms, blanching decreased the activity concentration of 137Cs by 15 ± 13%, and of 40K, by 16 ± 7%, but blanching and pickling (vinegar) reduced activity more effectively, by 55 ± 8% and 40 ± 20% respectively. The corresponding losses of 137Cs and 40K through maceration of dried, powdered mushrooms were 38 ± 11% and 35 ± 14% ww, respectively. These results indicate that traditional domestic processing methods may not be as efficient at excluding 137Cs radioactivity as shown in some other studies. The activity concentration of 137Cs in a typically sized (100 g) portion of a processed mushroom (sourced from nearshore regions of the southern Baltic Sea coast near Gdańsk in 2015) meal was projected to be low, i.e. in the range of 0.51 to 12 Bq kg-1 ww. The corresponding effective dose of 137Cs from blanched, blanched and pickled and macerated mushrooms per capita was also assessed to be low, from 0.001 to 0.010 μSv. Nutritionally, the median concentration of potassium (330 mg) in 100 g portions of blanched or pickled mushrooms would account for around 7% of the adequate adult daily intake.
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Affiliation(s)
- Jerzy Falandysz
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, 1 Muszyńskiego Street, 90-151, Lódź, Poland.
| | - Daniela Meloni
- Istituto Zooprofilattico Sperimentale del Piemonte Liguria e Valle d'Aosta, Via Bologna 148, 10154, Torino, Italy
| | - Alwyn R Fernandes
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Michał Saniewski
- Institute of Meteorology and Water Management - National Research Institute, 42 Waszyngtona Av, 81-342, Gdynia, Poland
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Falandysz J, Saniewski M, Fernandes AR, Meloni D, Cocchi L, Strumińska-Parulska D, Zalewska T. Radiocaesium in Tricholoma spp. from the Northern Hemisphere in 1971-2016. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149829. [PMID: 34464794 DOI: 10.1016/j.scitotenv.2021.149829] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
A considerable amount of data has been published on the accumulation of radiocaesium (134Cs and particularly, 137Cs) in wild fungi since the first anthropogenically influenced releases into the environment due to nuclear weapon testing, usage and subsequently from major accidents at nuclear power plants in Chernobyl (1986) and Fukushima (2011). Wild fungi are particularly susceptible to accumulation of radiocaesium and contamination persists for decades after pollution events. Macromycetes (fruiting bodies, popularly called mushrooms) of the edible fungal species are an important part of the human and forest animal food-webs in many global locations. This review discusses published occurrences of 134Cs and 137Cs in twenty four species of Tricholoma mushrooms sourced from the Northern Hemisphere over the last five decades, but also includes some recent data from Italy and Poland. Tricholoma are an ectomycorrhizal species and the interval for contamination to permeate to lower soils layers which host their mycelial networks, results in a delayed manifestation of radioactivity. Available data from Poland, over similar periods, may suggest species selective differences in accumulation, with some fruiting bodies, e.g. T. portentosum, showing lower activity levels relative to others, e.g. T. equestre. Species like T. album, T. sulphurescens and T. terreum also show higher accumulation of radiocaesium, but reported observations are few. The uneven spatial distribution of the data combined with a limited number of observations make it difficult to decipher any temporal contamination patterns from the observations in Polish regions. When data from other European sites is included, a similar variability of 137Cs activity is apparent but the more recent Ukrainian data appears to show relatively lower activities. 40K activity in mushrooms which is associated with essential potassium, remains relatively constant. Further monitoring of 137Cs activity in wild mushrooms would help to consolidate these observations.
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Affiliation(s)
- Jerzy Falandysz
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, 1 Muszyńskiego Street, 90-151 Lódź, Poland.
| | - Michał Saniewski
- Institute of Meteorology and Water Management - Maritime Branch, National Research Institute, 42 Waszyngtona Av., 81-342 Gdynia, Poland
| | - Alwyn R Fernandes
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK
| | - Daniela Meloni
- Istituto Zooprofilattico Sperimentale del Piemonte Liguria e Valle d'Aosta, Via Bologna 148, 10154 Torino, Italy
| | - Luigi Cocchi
- Gruppo Micologico e Naturalistico R. Franchi, Via D. Piani, 6, I-42100 Reggio Emilia, Italy; Comitato Scientifico Nazionale dell' Associazione Micologica Bresadola, Via A.Volta, 46, I-38100 Trento, Italy
| | - Dagmara Strumińska-Parulska
- Toxicology and Radiation Protection Laboratory, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland
| | - Tamara Zalewska
- Institute of Meteorology and Water Management - Maritime Branch, National Research Institute, 42 Waszyngtona Av., 81-342 Gdynia, Poland
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Falandysz J, Wang Y, Saniewski M. 137Cs and 40K activities and total K distribution in the sclerotia of the Wolfiporia cocos fungus from China. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2021; 231:106549. [PMID: 33592538 DOI: 10.1016/j.jenvrad.2021.106549] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/15/2020] [Accepted: 01/30/2021] [Indexed: 06/12/2023]
Abstract
The activity concentration of 137Cs and 40K and total K content in the sclerotia of the Chinese medicinal fungus Wolfiporia cocos collected mainly from Yunnan province of China during the period 2013-2015 were investigated. W. cocos in Yunnan is collected from the wild and is cultivated in field conditions and the wood substrate used is derived from the local pine (Pinus yunnanensis Franch.) logs from neighborhood forests. The outer part of sclerotia was found to be richer than the inner one in both 137Cs and 40K with median values of 7.3 and 3.2 Bq kg-1 dry weight (dw) for 137Cs, 220 and 140 Bq kg-1 dw for 40K. The median K concentrations were 6800 mg kg-1 dw in the outer and 3700 mg kg-1 dw in the inter parts. No statistically significant correlation was found for activity concentrations between the inner and outer parts, both for 137Cs and 40K (p > 0.05). Using the median activities of 137Cs, the nominal values of effective dose (mSv) for exposed adults annually consuming 50 g of sclerotia, were estimated at 0.0035 mSv and 0.084 mSv (outer part), and 0.0020 mSv and 0.040 mSv (inner part) per capita, respectively. Sclerotia of W. cocos seemed to be a relatively good source of K.
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Affiliation(s)
- Jerzy Falandysz
- University of Gdańsk, Environmental Chemistry & Ecotoxicology, 80-308, Gdańsk, Poland; Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130015, Cartagena, Colombia; Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China.
| | - Yuanzhong Wang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China; Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China
| | - Michał Saniewski
- Institute of Meteorology and Water Management - Maritime Branch, National Research Institute, 42 Waszyngtona Av., 81-342, Gdynia, Poland
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Falandysz J, Saba M, Strumińska-Parulska D. 137Caesium, 40K and total K in Boletus edulis at different maturity stages: Effect of braising and estimated radiation dose intake. CHEMOSPHERE 2021; 268:129336. [PMID: 33359994 DOI: 10.1016/j.chemosphere.2020.129336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 12/07/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
We studied activity concentrations of artificial 137Cs and natural 40K and concentration of total potassium (K) in Boletus edulis at different maturity stages (button, young - white, large - white and large - yellow), and the effect of braising and human dietary intake. Mushrooms were collected from the northern region of Poland in 2019. The 137Cs activity concentration was significantly higher in raw and braised button stage samples and decreased as the fruitbody matured, but conversely, 40K was lower in the raw button stage than in older fruitbodies. 137Cs activity concentrations in raw, button stage B. edulis were 36 ± 1 Bq kg-1 ww (360 ± 1 Bq kg-1 dw), increasing to 70 ± 2 Bq kg-1 ww (290 ± 7 Bq kg-1 dw) when braised. This activity was around fourteen-fold higher (p < 0.0001) than at higher maturity stages which showed 2.5 ± 0.7 Bq kg-1 ww (25 ± 7 Bq kg-1 dw) in raw and 4.9 ± 0.7 Bq kg-1 ww (19 ± 4 Bq kg-1 dw) in braised fruitbodies. In comparison to raw B. edulis, braising enriched the activity concentrations of 137Cs at 110 ± 69% and 40K at 80 ± 56% on a whole (wet) weight basis.
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Affiliation(s)
- Jerzy Falandysz
- University of Gdańsk, Environmental Chemistry and Ecotoxicology, 63 Wita Stwosza Street, 80-308, Gdańsk, Poland.
| | - Martyna Saba
- University of Gdańsk, Environmental Chemistry and Ecotoxicology, 63 Wita Stwosza Street, 80-308, Gdańsk, Poland
| | - Dagmara Strumińska-Parulska
- University of Gdańsk, Toxicology and Radiation Protection Laboratory, 63 Wita Stwosza Street, 80-308, Gdańsk, Poland
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Saba M, Falandysz J. The effects of different cooking modes on the 137Cs, 40K, and total K content in Boletus edulis (King Bolete) mushrooms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:12441-12446. [PMID: 33074434 PMCID: PMC7921016 DOI: 10.1007/s11356-020-11147-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to get an insight into the effects of household processing on the leaching behaviour of 137Cs and 40K from fresh, frozen and dried Boletus edulis (King Bolete) mushrooms. Three processes were investigated-blanching, blanching and pickling, and drying followed by grinding and soaking. The activity concentrations of 137Cs and 40K in the fresh unprocessed mushrooms were 270 Bq kg-1 dry biomass (27 Bq kg-1 whole weight) and 590 Bq kg-1 db (59 Bq kg-1 ww), respectively. Blanching of fresh mushrooms decreased 137Cs activity by 55%, and 40K activity by 34%, and blanching of deep-frozen mushrooms caused a reduction of 52% and 44% (db) (equivalent to whole weight reductions of 37% and 8.5%, and 67% and 22%, respectively). Blanching and pickling of fresh mushrooms decreased 137Cs activity by 83% and 40K activity by 87%, while blanching deep-frozen mushrooms resulted in decreases of 88% and 80% (db) (whole weight decreases of 77% and 81%, and by ~ 84% and 72%, respectively). This study confirms earlier reports that blanching of fresh or frozen mushrooms alone is not as efficient at removing 137Cs as blanching followed by pickling. The study also shows that the initial rate of fruiting body disintegration and pre-preparation (comparing fresh, deep-frozen, or dried and ground) can have an impact on the leaching rate of the water soluble fraction of metallic elements.
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Affiliation(s)
- Martyna Saba
- Environmental Chemistry & Ecotoxicology, University of Gdańsk, 80-308, Gdańsk, Poland
| | - Jerzy Falandysz
- Environmental Chemistry & Ecotoxicology, University of Gdańsk, 80-308, Gdańsk, Poland.
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia.
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Falandysz J, Zhang J, Saniewski M. 137Cs, 40K, and K in raw and stir-fried mushrooms from the Boletaceae family from the Midu region in Yunnan, Southwest China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:32509-32517. [PMID: 32506414 PMCID: PMC7417414 DOI: 10.1007/s11356-020-09393-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/21/2020] [Indexed: 04/16/2023]
Abstract
The parallel batches of the same species and geographical origin mushrooms both raw and stir-fried were investigated to get an insight into the content and intake of 137Cs, 40K, and K from mushroom meals. The Boletaceae family species (Baorangia bicolor, Boletus bainiugan, Butyriboletus roseoflavus, Retiboletus griseus, Rugiboletus extremiorientalis, and Sutorius magnificus) were collected from the Midu County (Dali Bai Autonomous Prefecture) in 2018. The activity concentrations of 137Cs in the caps of dried raw mushrooms were in the range 14 ± 1 Bq kg-1 dry biomass (db) (R. griseus) to 34 ± 2 Bq kg-1 db (R. extremiorientalis), and in stems from 16 ± 1 Bq kg-1 db (B. bicolor and B. bainiugan) to 23 ± 1 Bq kg-1 db (R. extremiorientalis). The mean activity concentration in the whole fruiting bodies in all six species was 18 ± 4 Bq kg-1 db. The activity concentrations of 137Cs were roughly the same in both dehydrated materials, stir-fried, and raw mushrooms, while the contents of 40K and stable K were around 2- to 3-fold smaller in stir-fried than raw product. The raw and stir-fried mushrooms on a whole (wet) weight basis showed activity concentrations of 137Cs in the range from 1.2 to 3.2 Bq kg-1 ww (mean 1.9 ± 0.6 Bq kg-1 ww) and 6.0 to 9.4 Bq kg-1 ww (mean 7.0 ± 1.2 Bq kg-1 ww), respectively. Evidently, when expressed on a whole (wet) weight basis, the cooked mushrooms showed on average around 3.5-fold greater activity concentration of 137Cs when compared with raw mushrooms. The 137Cs, 40K, and total K enrichment in stir-frying (in a whole (wet) weight basis for the meal), confronted with the results for dehydrated raw and fried mushrooms, show the direct correlation with loss of mass (largely moisture) during the cooking procedure but not much of 137Cs and 40K. Edible wild mushrooms from Yunnan were little contaminated with radiocaesium. As assessed, the mean radioactivity dose from natural 40K in around 9.3-fold exceeded the dose obtained for artificial 137Cs from stir-fried mushroom meals, which both were very low doses.
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Affiliation(s)
- Jerzy Falandysz
- Environmental Chemistry and Ecotoxicology, University of Gdańsk, 63 Wita Stwosza Street, 80-308, Gdańsk, Poland.
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, Colombia.
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China.
| | - Ji Zhang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China
| | - Michał Saniewski
- Institute of Meteorology and Water Management - Maritime Branch, National Research Institute, 42 Waszyngtona Av., 81-342, Gdynia, Poland
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Falandysz J, Wang Y, Saniewski M, Fernandes AR. 137Caesium, 40Potassium and potassium in raw and deep-oil stir-fried mushroom meals from Yunnan in China. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103538] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Falandysz J, Zhang J, Saniewski M, Wang Y. Artificial ( 137Cs) and natural ( 40K) radioactivity and total potassium in medicinal fungi from Yunnan in China. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2020; 56:324-333. [PMID: 32192356 DOI: 10.1080/10256016.2020.1741574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
Evaluated has been radioactive contamination with 137Cs in parallel to occurrence of 40K and total K in 31 species of medicinal mushrooms from Yunnan, China. We chose species that were not previously studied. The activity concentrations of 137Cs in the medicinal fungi in this study were low. The maximum values were 54 ± 4 Bq kg-1 dry biomass (db) in caps and 48 ± 5 Bq kg-1 db in stipes of saprotrophic fungus Gerronema xanthophyllum from the family of Tricholomataceae. Mushrooms with relatively higher activity concentrations of 40K were among the non-polypore species but certain species from the genus Ganoderma such as G. applanatum, G. capense, G. philippii and G. sinense showed 40K in the higher range of 900 ± 240 to 1400 ± 340 Bq kg-1 db. The concentrations of total K in the fungal materials in this study were in the range from 2.9 ± 6.5 g kg-1 db in Fomes rufolaccatus to 110 ± 6 g kg-1 db in G. xanthophyllum. The species studied, which represented both some popular wood-decaying polypore fungi but also terrestrial forms from the herbal medicine of China, can be considered as little contaminated with 137Cs and potentially good source of leachable K in extract and decoction or as a powdered form in capsules.
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Affiliation(s)
- Jerzy Falandysz
- Environmental Chemistry & Ecotoxicology, University of Gdańsk, Gdańsk, Poland
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Cartagena, Colombia
- Yunnan Academy of Agricultural Sciences, Medicinal Plants Research Institute, Kunming, People's Republic of China
| | - Ji Zhang
- Yunnan Academy of Agricultural Sciences, Medicinal Plants Research Institute, Kunming, People's Republic of China
- Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, People's Republic of China
| | - Michał Saniewski
- Institute of Meteorology and Water Management - Maritime Branch, National Research Institute, Gdynia, Poland
| | - Yuanzhong Wang
- Yunnan Academy of Agricultural Sciences, Medicinal Plants Research Institute, Kunming, People's Republic of China
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Falandysz J, Zalewska T, Fernandes AR. 137Cs and 40K in Cortinarius caperatus mushrooms (1996-2016) in Poland - Bioconcentration and estimated intake: 137Cs in Cortinarius spp. from the Northern Hemisphere from 1974 to 2016. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113208. [PMID: 31654855 DOI: 10.1016/j.envpol.2019.113208] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
Cortinarius caperatus grows in the northern regions of Europe, North America and Asia and is widely collected by mushroom foragers across Europe. This study shows that in the last three decades since the Chernobyl nuclear accident, C. caperatus collected across much of Northern Poland exhibited high activity concentrations of radiocaesium (137Cs) - a long-lived radionuclide. The mushroom appears to efficiently bioconcentrate 137Cs from contaminated soil substrata followed by sequestration into its morphological parts such as the cap and stipe which are used as food. The gradual leaching of 137Cs into the lower strata of surface soils in exposed areas are likely to facilitate higher bioavailability to the mycelia of this species which penetrate to relatively greater depths and may account for the continuing high activity levels noticed in Polish samples (e.g. activity within caps in some locations was still at 11,000 Bq kg-1 dw in 2008 relative to a peak of 18,000 in 2002). The associated dietary intake levels of 137Cs have often exceeded the tolerance limits set by the European Union (370 and 600 Bq kg-1 ww for children and adults respectively) during the years 1996-2010. Human dietary exposure to 137Cs is influenced by the method of food preparation and may be mitigated by blanching followed by disposal of the water, rather than direct consumption after stir-frying or stewing. It may be prudent to provide precautionary advice and monitor activity levels, as this mushroom continues to be foraged by casual as well as experienced mushroom hunters.
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Affiliation(s)
- Jerzy Falandysz
- University of Gdańsk, Environmental Chemistry & Ecotoxicology, 80-308, Gdańsk, Poland; Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, 130015, Cartagena, Colombia; Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China.
| | - Tamara Zalewska
- Institute of Meteorology and Water Management, Maritime Branch, National Research Institute, 42 Waszyngtona Av., 81-342, Gdynia, Poland
| | - Alwyn R Fernandes
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
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Türkekul İ, Yeşilkanat CM, Ciriş A, Kölemen U, Çevik U. Interpolated mapping and investigation of environmental radioactivity levels in soils and mushrooms in the Middle Black Sea Region of Turkey. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2018; 54:262-273. [PMID: 29169290 DOI: 10.1080/10256016.2017.1402768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The activity concentration of natural (238U, 232Th, and 40K) and artificial (137Cs) radionuclides was determined in 50 samples (obtained from the same station) from various species of mushrooms and soil collected from the Middle Black Sea Region (Turkey). The activities of 238U, 232Th, 40K, and 137Cs were found as 84 ± 16, 45 ± 14, 570 ± 28, and 64 ± 6 Bq kg-1 (dry weight), respectively, in the mushroom samples and as 51 ± 6, 41 ± 6, 201 ± 11, and 44 ± 4 Bq kg-1, respectively, in the soil samples for the entire area of study. The results of all radionuclide activity measurements, except those of 238U and 232Th in the mushroom samples, are consistent with previous studies. In the soil samples, the mean values of 238U and 232Th are above the world mean, and the activity mean of 40K is below the world mean. Finally, the activity estimation was made with both the soil and mushroom samples for unmeasured points within the study area by using the ordinary kriging method. Radiological distribution maps were generated.
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Affiliation(s)
- İbrahim Türkekul
- a Faculty of Arts and Sciences, Department of Biology , Gaziosmanpaşa University , Tokat , Turkey
| | | | - Ali Ciriş
- c Faculty of Science, Department of Physics , Karadeniz Technical University , Trabzon , Turkey
| | - Uğur Kölemen
- d Faculty of Arts and Sciences, Department of Physics , Gaziosmanpaşa University , Tokat , Turkey
- e Faculty of Arts and Sciences , Giresun University , Giresun , Turkey
| | - Uğur Çevik
- c Faculty of Science, Department of Physics , Karadeniz Technical University , Trabzon , Turkey
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Su J, Zhang J, Li J, Li T, Liu H, Wang Y. Determination of mineral contents of wild Boletus edulis mushroom and its edible safety assessment. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2018; 53:454-463. [PMID: 29624491 DOI: 10.1080/03601234.2018.1455361] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study aimed to determine the contents of main mineral elements of wild Boletus edulis and to assess its edible safety, which may provide scientific evidence for the utilization of this species. Fourteen mineral contents (Ba, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Na, Ni, Sr, V and Zn) in the caps and stipes of B. edulis as well as the corresponding surface soils collected from nine different geographic regions in Yunnan Province, southwest China were determined. The analyses were performed using inductively coupled plasma atomic emission spectrometer (ICP-AES) after microwave digestion. Measurement data were analyzed using variance and Pearson correlation analysis. Edible safety was evaluated according to the provisionally tolerable weekly intake (PTWI) of heavy metals recommended by United Nations Food and Agriculture Organization and World Health Organization (FAO/WHO). Mineral contents were significantly different with the variance of collection areas. B. edulis showed relative abundant contents of Ca, Fe, Mg and Na, followed by Ba, Cr, Cu, Mn and Zn, and the elements with the lower content less were Cd, Co, Ni, Sr and V. The elements accumulation differed significantly in caps and stipes. Among them, Cd and Zn were bioconcentrated (BCF > 1) while others were bioexcluded (BCF < 1). The mineral contents in B. edulis and its surface soil were positively related, indicating that the elements accumulation level was related to soil background. In addition, from the perspective of food safety, if an adult (60 kg) eats 300 g fresh B. edulis per week, the intake of Cd in most of tested mushrooms were lower than PTWI value whereas the Cd intakes in some other samples were higher than this standard. The results indicated that the main mineral contents in B. edulis were significantly different with respect to geographical distribution, and the Cd intake in a few of regions was higher than the acceptable intakes with a potential risk.
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Affiliation(s)
- Jiuyan Su
- a College of Agronomy and Biotechnology, Yunnan Agricultural University , Kunming , China
- b Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences , Kunming , China
| | - Ji Zhang
- b Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences , Kunming , China
- c Yunnan Technical Center for Quality of Chinese Materia Medica , Kunming , China
| | - Jieqing Li
- a College of Agronomy and Biotechnology, Yunnan Agricultural University , Kunming , China
| | - Tao Li
- d College of Resources and Environment, Yuxi Normal University , Yuxi , China
| | - Honggao Liu
- a College of Agronomy and Biotechnology, Yunnan Agricultural University , Kunming , China
| | - Yuanzhong Wang
- b Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences , Kunming , China
- c Yunnan Technical Center for Quality of Chinese Materia Medica , Kunming , China
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Falandysz J, Saniewski M, Zhang J, Zalewska T, Liu HG, Kluza K. Artificial 137Cs and natural 40K in mushrooms from the subalpine region of the Minya Konka summit and Yunnan Province in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:615-627. [PMID: 29052148 PMCID: PMC5756559 DOI: 10.1007/s11356-017-0454-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 10/09/2017] [Indexed: 05/30/2023]
Abstract
A study on 137Cs pollution and activity concentrations of 40K in mushrooms of the genera Cortinarius, Leccinum, Russula, Tricholoma, Tylopilus, and Xerocomus from two neighboring regions in southwest China in 2010-2013 revealed different patterns of pollution with 137Cs, which seemed to be highly dependent on climate conditions. Tricholoma matsutake was collected in Yunnan before and after the Fukushima Dai-ichi nuclear accident and showed similar contamination with 137Cs. Mushrooms from the elevation of 2800-3480 m above sea level on the east slope of Minya Konka and forest topsoil showed higher contamination with 137Cs than mushrooms from the highlands of Yunnan. In detail, the activity concentration of 137Cs in caps of mushrooms from Minya Konka were in the range 62 ± 6-280 ± 150 Bq kg-1 dry biomass and from Yunnan at < 4.4-83 ± 3 Bq kg-1 dry biomass. The climate in the region of the Minya Konka is much colder than in Yunnan, which seems to favor deposition of 137Cs at higher altitudes from global atmospheric circulation. The activity concentration of 40K in mushrooms and soils highly exceeded that of 137Cs. The assessed annual effective doses for 137Cs in 1 kg of consumed mushrooms of the genera Leccinum and Xerocomus in Yunnan were low, i.e., in the range < 0.0043-0.049 ± 0.004 μSv, while those for 40K were 0.26 ± 0.02-0.81 ± 0.09 μSv.
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Affiliation(s)
- Jerzy Falandysz
- Laboratory of Environmental Chemistry & Ecotoxicology, Gdańsk University, 63 Wita Stwosza Street, 80-308, Gdańsk, Poland.
| | - Michał Saniewski
- Institute of Meteorology and Water Management-Maritime Branch, National Research Institute, 42 Waszyngtona Av, Gdynia, Poland
| | - Ji Zhang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Tamara Zalewska
- Institute of Meteorology and Water Management-Maritime Branch, National Research Institute, 42 Waszyngtona Av, Gdynia, Poland
| | - Hong-Gao Liu
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Karolina Kluza
- Laboratory of Environmental Chemistry & Ecotoxicology, Gdańsk University, 63 Wita Stwosza Street, 80-308, Gdańsk, Poland
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14
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Cocchi L, Kluza K, Zalewska T, Apanel A, Falandysz J. Radioactive caesium ( 134Cs and 137Cs) in mushrooms of the genus Boletus from the Reggio Emilia in Italy and Pomerania in Poland. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2017; 53:620-627. [PMID: 28612628 DOI: 10.1080/10256016.2017.1337761] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Activity concentrations of 134Cs and 137Cs were determined in mushrooms of the Boletus species B. aereus, B. reticulatus, B. appendiculatus, B. calopus, B. edulis, B. erythropus, B. fechtneri, B. pinophilus, B. pseudoregius, B. rhodopurpureus, B. rhodoxanthus collected in the Reggio Emilia, Italy, in 1993 and 1994 and in B. edulis collected in Pomerania in northern Poland in the period from 1995-2015. Boletus edulis from the Reggio Emilia showed presence of 137Cs at 330 ± 220 Bq kg-1 dry biomass in 1993 and at 370 ± 180 Bq kg-1 dry biomass in 1994. In B. edulis sampled in the Reggio Emilia in 1993 and 1994, the pre-Chernobyl 137Cs from global fallout amounted to 39-46 % of the total activity concentrations of isotope 137Cs. B. edulis from Pomerania contained 137Cs in caps at 270 ± 15 Bq kg-1 dry biomass in 1995, and in whole fruiting bodies it was found to be 470 ± 9 Bq kg-1 dry biomass in 2015. The activity concentrations of 137Cs determined in fruiting bodies of B. edulis from Pomerania fluctuated but persisted over the period from 1995 to 2015, while the maximum activity concentrations were well below the tolerance limit of 600 Bq kg-1 fresh product.
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Affiliation(s)
- Luigi Cocchi
- a Gruppo Micologico e Naturalistico R. Franchi , Reggio Emilia , Italia
- b Comitato Scientifico Nazionale dell' Associazione Micologica Bresadola , Trento , Italia
| | - Karolina Kluza
- c Laboratory of Environmental Chemistry & Ecotoxicology , University of Gdańsk , Gdańsk , Poland
| | - Tamara Zalewska
- d Institute of Meteorology and Water Management - National Research Institute, Maritime Branch , Gdynia , Poland
| | - Anna Apanel
- d Institute of Meteorology and Water Management - National Research Institute, Maritime Branch , Gdynia , Poland
| | - Jerzy Falandysz
- c Laboratory of Environmental Chemistry & Ecotoxicology , University of Gdańsk , Gdańsk , Poland
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