Influences of charcoal and bamboo charcoal amendment on soil-fluoride fractions and bioaccumulation of fluoride in tea plants.

Environmental Geochemistry and Health
Hongjian GaoXiao-Chun Wan

Abstract

High levels of fluoride in tea plants pose a potential health risk to humans who drink tea. It has been demonstrated that tea plant fluoride is closely related to the available fluoride in soil. But approaches that could be used to regulate the availability of fluoride in soil have been rarely seen. This study aims to investigate how the addition of charcoal and bamboo charcoal affected soil fluoride availability and bioaccumulation of fluoride in tea plants. In a microcosm experiment, tea plants were grown in the tea garden soil mixed with different amounts of charcoal and bamboo charcoal [that is, 0.5, 1.0, 2.5, and 5.0 % (w/w)]. Soil-fluoride fractions and fluoride accumulated in tea plants were determined using the sequential extraction and ion selective electrode method. Obtained results showed that both charcoal and bamboo charcoal additions significantly enhanced the concentrations of Fe/Mn oxide-bound fluoride, but significantly reduced the concentrations of water-soluble and exchangeable fluoride (p < 0.05) in soil. Charcoal and bamboo charcoal additions also significantly decreased the amounts of fluoride in tea roots and tea leaves (p < 0.05). However, the additions of charcoal and bamboo charcoal had no impacts on t...Continue Reading

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Citations

Dec 15, 2015·Ecotoxicology and Environmental Safety·Bojia SheZhi Dang
Sep 1, 2015·Plant Physiology and Biochemistry : PPB·Xian-Chen ZhangXiao-Chun Wan
Jul 13, 2016·Journal of the Science of Food and Agriculture·Chuanyi PengXiaochun Wan
Sep 7, 2016·Environmental Geochemistry and Health·Xiaoyun YiJianyun Ruan
Jun 23, 2020·Journal of the Science of Food and Agriculture·Margherita RizzuGiovanna Seddaiu
Oct 6, 2020·Journal of Environmental Quality·Thangavelautham GeretharanChristopher W N Anderson
Dec 28, 2019·Environmental Science and Pollution Research International·Yueyue LiYepu Li
Mar 1, 2020·British Dental Journal·John K BrooksMark A Reynolds
Jul 18, 2017·Journal of Environmental and Public Health·Declan T WaughWilliam Potter
Jan 13, 2019·International Journal of Molecular Sciences·Jiaojiao ZhuYuhua Wang
Apr 18, 2021·Environmental Science and Pollution Research International·Peng XuZuo Lin
Feb 20, 2014·Journal of Agricultural and Food Chemistry·Hong-jian GaoJing-dong Mao

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