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	A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China
	Li, Lanhai1; Fu, Qing-Long2,4; Achal, Varenyam3; Liu, Yonglin4
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2015-05-01
卷号	187期号:5页码:12
关键词	Green tea Tea infusion Heavy metals Aluminum Health risk assessment Food safety
ISSN号	0167-6369
DOI	10.1007/s10661-015-4445-2
通讯作者	Fu, Qing-Long(fuqinglong09@mails.ucas.ac.cn)
英文摘要	Heavy metals and Al in tea products are of increasing concern. In this study, contents of Al, Cd, Co, Cr, Cu, Ni, and Pb in commercially available green tea and its infusions were measured by ICP-MS and ICP-AES. Both target hazard quotient (THQ) and hazard index (HI) were employed to assess the potential health risk of studied metals in tea leaves and infusions to drinkers. Results showed that the average contents of Al, Cd, Co, Cr, Cu, Ni, and Pb in tea leaves were 487.57, 0.055, 0.29, 1.63, 17.04, 7.71, and 0.92 mg/kg, respectively. Except for Cu, metal contents were within their maximum limits (1, 5, 30, and 5 mg/kg for Cd, Cr, Cu, and Pb, respectively) of current standards for tea products. Concentrations of metals in tea infusions were all below their maximum limits (0.2, 0.005, 0.05, 1.0, 0.02, and 0.01 mg/L for Al, Cd, Cr(VI), Cu, Ni, and Pb, respectively) for drinking water, and decreased with the increase of infusion times. Pb, Cd, Cu, and Al mainly remained in tea leaves. The THQ from 2.33x 10(-5) to 1.47x10(-1) and HI from1.41x10(-2) to 3.45x10(-1) values in tea infusions were all less than 1, suggesting that consumption of tea infusions would not cause significant health risks for consumers. More attention should be paid to monitor Co content in green tea. Both THQ and HI values decreased with the increase of infusion times. Results of this study suggest that tea drinkers should discard the first tea infusion and drink the following infusions.
收录类别	SCI
WOS关键词	BLACK TEA ; TRACE-ELEMENTS ; SOUTH CHINA ; PRODUCTS ; COPPER ; LEAD ; SOIL ; CHROMIUM ; ZN ; CU
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000355606500001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558399
专题	南京土壤研究所
通讯作者	Fu, Qing-Long
作者单位	1.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing 210037, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Soil Environm & Pollut Remediat, Inst Soil Sci, Nanjing 210008, Peoples R China 3.E China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China 4.Jiangxi Inst Analyzing & Testing, Nanchang 330029, Peoples R China
推荐引用方式 GB/T 7714	Li, Lanhai,Fu, Qing-Long,Achal, Varenyam,et al. A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2015,187(5):12.
APA	Li, Lanhai,Fu, Qing-Long,Achal, Varenyam,&Liu, Yonglin.(2015).A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China.ENVIRONMENTAL MONITORING AND ASSESSMENT,187(5),12.
MLA	Li, Lanhai,et al."A comparison of the potential health risk of aluminum and heavy metals in tea leaves and tea infusion of commercially available green tea in Jiangxi, China".ENVIRONMENTAL MONITORING AND ASSESSMENT 187.5(2015):12.

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