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Cunha, I. I. L.; Bueno, Luciana; Fávaro, D. I. T.; Maihara, V. A.; Cozzollino, S.

doi:10.1023/a:1006750912141

Cited by 22 publications

(5 citation statements)

References 3 publications

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“…In general, the concentration of 210 Po for vegetables, fish, beef, milk and maize was in the overall range of values for other countries as reported in the literature [6][7][8][9][10], although activities for vegetables, especially root vegetables, were higher than literature values. The concentrations obtained in the background marine fish compared well with the global concentration of 2.4 Bq/kg for fish [21].…”

Section: Polonium-210 Activity In Food Samplessupporting

confidence: 51%

“…For comparative purposes the average annual effective dose from ingestion of 210 Po in Sv/a is estimated as 12 in the UK diet [9], 128 in India [10], 54 in Poland [11], 8.7-22.6 in Brazil [8], 25-120 in Portugal [7] and 416 in Syria [6]. Greater than average doses up to 3.4 mSv/a are experienced by populations with diets high in seafood [10].…”

Section: Committed Effective Dosementioning

confidence: 99%

“…Consumption of food is usually the most important route by which natural radionuclides can enter the human body and assessment of natural radionuclide levels in different foods and diets is therefore important to estimate the intake of these radionuclides by man. Since the early 1960s some comprehensive studies on the concentration of 210 Pb and 210 Po in foodstuffs and the dose due to intake of these radionuclides through diets, have been carried out in various part of the world [3][4][5][6][7][8][9][10][11][12][13][14]. In contrast, not much data on dietary intake of 210 Po and 210 Pb in South Africa are available, except for studies on the 210 Po content in marine organisms [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Determination of Polonium-210 in various foodstuffs after microwave digestion

2009

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Abstract. Natural radioactivity is associated with the vast mineral resources in South Africa in such concentrations that the radionuclides from the natural uranium and thorium decay series are found to pose concern for public exposure to communities living around these areas. The radiological impact of all operations is monitored as part of the license obligations, imposed by the South African National Nuclear Regulator Act [1]. Two main pathways giving rise to significant exposures are of interest: (a) direct ingestion resulting from regular and continuous use of contaminated water for drinking purposes, and (b) regular consumption of fish and other food products harvested from and/or grown in contaminated areas. To measure the individual nuclides in foodstuffs at the required sensitivity level in order to evaluate the yearly dose due to an individual source at a screening level of 25 Sv/a, one is faced with a required lower limit of determination (LLD) of 0.1 to 0.5 Bq/kg for certain foodstuffs. For some of the nuclides this LLD can only be obtained with radiochemical separation through acid destruction of dried foodstuffs followed by individual element separations. In this study the digestion of foodstuffs in an open-vessel microwave system followed by the determination of 210 Po through radiochemical separation by spontaneous deposition onto silver discs and subsequent measurement by -spectrometry, has been evaluated. The levels of 210 Po in a variety of foodstuffs were determined and the estimated dose for the adult age group, resulting from consumption was evaluated. The dose from 210 Po varied from 4 to 250 Sv/a for the various foodstuffs, with the largest intake from fish (about 0.5 Bq/day).

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Section: Polonium-210 Activity In Food Samplessupporting

confidence: 51%

Section: Committed Effective Dosementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Determination of Polonium-210 in various foodstuffs after microwave digestion

2009

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“…For Japanese adult residents, the dose from their diet was estimated to be 50 µSv from 210 Po and 53 µSv from 210 Pb [ 53 ]. The lower values of the annual 210 Po intakes are found in Argentina, Brazil and the UK (from 20 to 30 µSv/y), where the marine food plays a minor role in diets [ 43 , 49 , 54 ]. On the other hand, the highest annual 210 Po intake (from 400 to 1200 µSv/y) is in countries like India, Portugal, Spain, the Marshall Islands, Lapland (in the north of Finland) and northern Canada, where marine food is an essential part of diet [ 4 , 55 , 56 , 57 , 58 ].…”

Section: Resultsmentioning

confidence: 99%

Sources of Polonium 210Po and Radio-Lead 210Pb in Human Body in Poland

Boryło

Skwarzec

Wieczorek

2022

IJERPH

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This article contains and discusses the results of research on the source of polonium 210Po and radio-lead 210Pb in the human body of adults living in Poland. An adult inhabitant of Poland receives an effective annual radiation dose of 309 µSv from inhalation and absorption of 210Po and 210Pb. The main sources of both radionuclides in the body is cigarette and marijuana smoking. In terms of food, the consumption of fish, cereals, vegetables and fruit as well as mushrooms have the largest contribution to annual dose. This study highlights the importance of cigarette smoking and the growing importance of marijuana hash smoking as the main source of 210Po and 210Pb for adults living in Poland. The calculated dose that results from the decay of both radionuclides in body is 1/10 of the annual radiation dose received by a Polish inhabitant from natural sources (2.8 mSv) and is almost five times lower than the dose resulting from the inhalation of 222Rn.

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“…The concentration of 210 Po and 210 Pb in marine food has received much interest from the marine scientific community because of the high radioactive dose they deliver to marine organisms compared to anthropogenic radionuclides released into coastal waters. [1][2][3] Furthermore, these radionuclides are accumulated in the edible portions of marine organisms, and are considered to be the most important contributors of radiation received by humans via fish and shellfish consumption. [3][4][5][6] The 210 Po accumulated in marine organisms is generally derived from the food chain, 7 and significant differences are noted in its accumulation in different species.…”

Section: Introductionmentioning

confidence: 99%