Chlorate and perchlorate in tea leaves from major producing regions in China and related human exposure risk
© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature..
Chlorate and perchlorate are emerging pollutants that may interfere with thyroid function. Since they are highly water soluble, chlorate and perchlorate in tea leaves cause health concerns but have scarcely been studied. In this study, chlorate and perchlorate concentrations in 216 tea samples from different regions of China were determined. Perchlorate was detected in all the samples with a median concentration of 44.1 μg kg-1, while the chlorate detection frequency was 15.7%. We observed regional differences in perchlorate contents in tea leaves, with the highest quantity found in the central region of China. Except for dark tea, the concentration of perchlorate in tea infusions decreased with the increased number of times the tea leaves were brewed. The hazard quotients (HQs) of chlorate and perchlorate in all the samples were less than 1, suggesting negligible health risks caused by these pollutants from tea consumption. To the best of our knowledge, this is the first study to investigate chlorate and perchlorate contamination in tea infusions by simulating brewing behavior.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:31 |
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| Enthalten in: |
Environmental science and pollution research international - 31(2024), 6 vom: 06. Jan., Seite 8510-8518 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Hu, Wanting [VerfasserIn] |
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| Links: |
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| Themen: |
Chlorate |
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| Anmerkungen: |
Date Completed 31.01.2024 Date Revised 31.01.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s11356-023-31742-8 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Chlorate and perchlorate are emerging pollutants that may interfere with thyroid function. Since they are highly water soluble, chlorate and perchlorate in tea leaves cause health concerns but have scarcely been studied. In this study, chlorate and perchlorate concentrations in 216 tea samples from different regions of China were determined. Perchlorate was detected in all the samples with a median concentration of 44.1 μg kg-1, while the chlorate detection frequency was 15.7%. We observed regional differences in perchlorate contents in tea leaves, with the highest quantity found in the central region of China. Except for dark tea, the concentration of perchlorate in tea infusions decreased with the increased number of times the tea leaves were brewed. The hazard quotients (HQs) of chlorate and perchlorate in all the samples were less than 1, suggesting negligible health risks caused by these pollutants from tea consumption. To the best of our knowledge, this is the first study to investigate chlorate and perchlorate contamination in tea infusions by simulating brewing behavior | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a Health risk assessment | |
| 650 | 4 | |a Perchlorate | |
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| 650 | 7 | |a perchlorate |2 NLM | |
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| 700 | 1 | |a Zhang, Duo |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Yining |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xiangyu |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Zhou |e verfasserin |4 aut | |
| 700 | 1 | |a Ji, Jiajia |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Donghui |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Shaoyou |e verfasserin |4 aut | |
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