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The level of 210 Pb extraction efficiency in Polish herbal teas and the possible effective dose to consumers.

Authors :
Moniakowska A
Olszewski G
Block K
Strumińska-Parulska D
Source :
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering [J Environ Sci Health A Tox Hazard Subst Environ Eng] 2020; Vol. 55 (2), pp. 161-167. Date of Electronic Publication: 2019 Oct 17.
Publication Year :
2020

Abstract

The article presents the results of a study on the level of <superscript>210</superscript> Pb efficiency extraction in Polish herbal teas as a possible additional source of this radioactive isotope in the human diet. The twelve most popular herbal teas available in Poland and their infusions in filtered and tap water were analyzed as well as <superscript>210</superscript> Pb activity concentrations and effective doses (radiation) were calculated. The highest activity concentration of <superscript>210</superscript> Pb in dried plants was determined in cistus - 35.5 Bq kg <superscript>-1 </superscript> dry wt, while the lowest was in milk thistle - 3.25 Bq kg <superscript>-1 </superscript> dry wt what gives respectively for cistus 46.1 ± 0.7 and 6.50 ± 0.29 mBq for milk thistle per one tea bag. The extraction efficiencies in the filtered water oscillated from 5.1 ± 0.5 for milk thistle to 27.3 ± 0.8% for cistus, while for the tap water they ranged from 7.3 ± 0.6% for lime to 33.3 ± 2.2% for white mulberry. Based on the study, it was found that the analyzed herbal tea consumption would give a small portion of the annual effective dose of <superscript>210</superscript> Pb received in Poland - the annual effective radiation dose of <superscript>210</superscript> Pb taken with herbal tea infusions (one glass daily) was calculated from 0.08 ± 0.01 to 3.17 ± 0.08 µSv.

Details

Language :
English
ISSN :
1532-4117
Volume :
55
Issue :
2
Database :
MEDLINE
Journal :
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
Publication Type :
Academic Journal
Accession number :
31621474
Full Text :
https://doi.org/10.1080/10934529.2019.1678323