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Radiolead 210Pb and 210Po/210Pb activity ratios in calcium supplements and the assessment of their possible dose to consumers
This paper presents the results of pioneer study of the most popular calcium supplements as a potential additional source of radiolead 210Pb in human diet. The analyzed calcium pharmaceutics contained organic or inorganic calcium compounds; some came from natural sources as mussels' shells, fish extracts, or sedimentary rocks. The idea was to investigate the naturally occurring 210Pb activity in different calcium supplements and calculate the annual effective radiation dose from radiolead 210Pb decay in consumed calcium supplement. The results showed 210Pb concentrations in natural origin calcium supplements (especially sedimentary rocks) were significantly higher. The highest 210Pb activity concentrations were determined in mineral tablets made from dolomite – 2.97 ± 0.18 mBq g−1, while the lowest was observed in organic calcium compounds – both calcium lactate – 0.08 ± 0.01 and 0.13 ± 0.01 mBq g−1. The highest annual radiation dose from 210Pb taken with 1 tablet of calcium supplement per day was calculated for soluble calcium lactate sample – 1.19 ± 0.03 µSv year−1, while the highest annual radiation dose from 210Pb taken daily with 1 g of pure Ca for dolomite – 5.57 ± 0.34 µSv year−1.
Radiolead 210Pb and 210Po/210Pb activity ratios in calcium supplements and the assessment of their possible dose to consumers
This paper presents the results of pioneer study of the most popular calcium supplements as a potential additional source of radiolead 210Pb in human diet. The analyzed calcium pharmaceutics contained organic or inorganic calcium compounds; some came from natural sources as mussels' shells, fish extracts, or sedimentary rocks. The idea was to investigate the naturally occurring 210Pb activity in different calcium supplements and calculate the annual effective radiation dose from radiolead 210Pb decay in consumed calcium supplement. The results showed 210Pb concentrations in natural origin calcium supplements (especially sedimentary rocks) were significantly higher. The highest 210Pb activity concentrations were determined in mineral tablets made from dolomite – 2.97 ± 0.18 mBq g−1, while the lowest was observed in organic calcium compounds – both calcium lactate – 0.08 ± 0.01 and 0.13 ± 0.01 mBq g−1. The highest annual radiation dose from 210Pb taken with 1 tablet of calcium supplement per day was calculated for soluble calcium lactate sample – 1.19 ± 0.03 µSv year−1, while the highest annual radiation dose from 210Pb taken daily with 1 g of pure Ca for dolomite – 5.57 ± 0.34 µSv year−1.
Radiolead 210Pb and 210Po/210Pb activity ratios in calcium supplements and the assessment of their possible dose to consumers
Strumińska-Parulska, Dagmara I. (author)
Journal of Environmental Science and Health, Part A ; 51 ; 851-854
2016-08-23
4 pages
Article (Journal)
Electronic Resource
English
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