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Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China
Perchlorate is a kind of persistent pollutant which occurs widely in the environment. The news of “high content of perchlorate detected in tea exported from China to Europe” has aroused public concerns on perchlorate in tea. However, limited data on its occurrence in tea and health risks for the tea...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10563047/ https://www.ncbi.nlm.nih.gov/pubmed/37822319 http://dx.doi.org/10.1016/j.crfs.2023.100606 |
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author | Li, Yan Li, Shaohua Ren, Jun Li, Jingguang Zhao, Yunfeng Chen, Dawei Wu, Yongning |
author_facet | Li, Yan Li, Shaohua Ren, Jun Li, Jingguang Zhao, Yunfeng Chen, Dawei Wu, Yongning |
author_sort | Li, Yan |
collection | PubMed |
description | Perchlorate is a kind of persistent pollutant which occurs widely in the environment. The news of “high content of perchlorate detected in tea exported from China to Europe” has aroused public concerns on perchlorate in tea. However, limited data on its occurrence in tea and health risks for the tea consumers are available. To this end, this study explored the occurrence and spatial distribution of perchlorate based on 747 tea samples collected from the 13 major tea producing regions in China. Perchlorate was detected in 100% of tea samples. The average concentration of perchlorate was 163 μg/kg with the range from 1.2 μg/kg to 3132 μg/kg. From the perspective of spatial distribution, a remarkable difference was observed for perchlorate concentrations in tea samples between different regions (p < 0.0001), and the average concentration of perchlorate from the central China (409 μg/kg) was higher than that from the eastern (90.7 μg/kg) and western (140 μg/kg) regions. However, this study cannot obtain the difference of perchlorate concentrations between different tea categories. Furthermore, a human exposure assessment of perchlorate intake through tea consumption was performed by deterministic and probabilistic risk assessment. The average chronic daily intake (CDI) to perchlorate of Chinese tea consumers was 0.0183 μg/kg bw/day, however, CDI for high tea consumers (99% and 99.9%) was 0.1514–0.4675 μg/kg bw/day. The health risk assessment conducted with a hazard quotient showed that perchlorate exposure through tea consumption was under a safety threshold. Nevertheless, if other dietary exposure pathways were considered, health risks to perchlorate for high tea consumers would be paid attention to. |
format | Online Article Text |
id | pubmed-10563047 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-105630472023-10-11 Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China Li, Yan Li, Shaohua Ren, Jun Li, Jingguang Zhao, Yunfeng Chen, Dawei Wu, Yongning Curr Res Food Sci Research Article Perchlorate is a kind of persistent pollutant which occurs widely in the environment. The news of “high content of perchlorate detected in tea exported from China to Europe” has aroused public concerns on perchlorate in tea. However, limited data on its occurrence in tea and health risks for the tea consumers are available. To this end, this study explored the occurrence and spatial distribution of perchlorate based on 747 tea samples collected from the 13 major tea producing regions in China. Perchlorate was detected in 100% of tea samples. The average concentration of perchlorate was 163 μg/kg with the range from 1.2 μg/kg to 3132 μg/kg. From the perspective of spatial distribution, a remarkable difference was observed for perchlorate concentrations in tea samples between different regions (p < 0.0001), and the average concentration of perchlorate from the central China (409 μg/kg) was higher than that from the eastern (90.7 μg/kg) and western (140 μg/kg) regions. However, this study cannot obtain the difference of perchlorate concentrations between different tea categories. Furthermore, a human exposure assessment of perchlorate intake through tea consumption was performed by deterministic and probabilistic risk assessment. The average chronic daily intake (CDI) to perchlorate of Chinese tea consumers was 0.0183 μg/kg bw/day, however, CDI for high tea consumers (99% and 99.9%) was 0.1514–0.4675 μg/kg bw/day. The health risk assessment conducted with a hazard quotient showed that perchlorate exposure through tea consumption was under a safety threshold. Nevertheless, if other dietary exposure pathways were considered, health risks to perchlorate for high tea consumers would be paid attention to. Elsevier 2023-10-04 /pmc/articles/PMC10563047/ /pubmed/37822319 http://dx.doi.org/10.1016/j.crfs.2023.100606 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Li, Yan Li, Shaohua Ren, Jun Li, Jingguang Zhao, Yunfeng Chen, Dawei Wu, Yongning Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China |
title | Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China |
title_full | Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China |
title_fullStr | Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China |
title_full_unstemmed | Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China |
title_short | Occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in China |
title_sort | occurrence, spatial distribution, and risk assessment of perchlorate in tea from typical regions in china |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10563047/ https://www.ncbi.nlm.nih.gov/pubmed/37822319 http://dx.doi.org/10.1016/j.crfs.2023.100606 |
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