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Do You Know What You Drink? Comparative Research on the Contents of Radioisotopes and Heavy Metals in Different Types of Tea from Various Parts of the World
Abstract
The aim of this study was to assess the potential health risks of radioactive elements and heavy metals ingested through the consumption of various types of tea imported to the Polish market (black, green, red, oolong and white). The concentrations [Bq/kg] of radionuclides (40K, 137Cs, 226Ra, 210Pb and 228Th) in tea leaves before and after brewing were measured using γ-ray spectrometry with high-purity germanium (HPGe). The concentrations [mg/kg] of the studied elements (Fe, Cr, Cu, Mo, Al, Mn, Ni, P, V, Cd and Pb) were determined using a microwave-induced plasma optical emission spectrometer (MIP-OES). The results presented here will help to expand the database of heavy metals and radioactivity in teas. With regard to the potential health risk, the percentage of leaching of individual elements in different types of tea infusions was determined, and the assessment of the consumption risk was estimated. Since the calculated exposure factors, namely the HQ (Hazard Quotient) and THQ (Target Hazard Quotient), do not exceed critical levels, teas can still be considered health-beneficial products (most of the radionuclides as well as elements remain in the leaves (65–80%) after brewing).
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Authors (11)
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Grządka Elżbieta dr hab.
- UMCS Lublin
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Anna Bastrzyk
- Politechnika Wrocławska
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Jolanta Orzeł dr
- UMCS Lublin
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Agata Oszczak-Nowińska,
- WAT
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Bartłomiej Fliszkiewicz
- WAT
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Katarzyna Gołębiewska
- UMCS Lublin
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/foods13050742
- License
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach dostępnych w wersji elektronicznej [także online]
- Published in:
-
Foods
ISSN: 2304-8158 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Elżbieta G., Bastrzyk A., Orzeł J., Oszczak-Nowińska, A., Fliszkiewicz B., Siemieniuk M., Sobczyński K., Spławski O., Gołębiewska K., Ronda O., Cieślik B., Do You Know What You Drink? Comparative Research on the Contents of Radioisotopes and Heavy Metals in Different Types of Tea from Various Parts of the World, Foods, 2024,10.3390/foods13050742
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/foods13050742
- Sources of funding:
-
- Statutory activity/subsidy
- Verified by:
- Gdańsk University of Technology
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