Lead and copper levels in tea samples marketed in Beijing, China

Bulletin of Environmental Contamination and Toxicology

Volumn 78, Issue 2, 2007, Pages 118-121

  Qin, F ^a   Chen, W ^a  

^a BEIJING UNION UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

LEAD; ZINC;

ANALYTIC METHOD; ARTICLE; CHINA; FOOD ANALYSIS; FOOD CONTAMINATION; MARKETING; PLANT GROWTH; SAMPLING; TEA;

EID: 34249675732     PISSN: 00074861     EISSN: 14320800     Source Type: Journal    
DOI: 10.1007/s00128-007-9035-8     Document Type: Article

References (21)

1. Bahemuka TE, Mubofum EB (1999) Heavy metals in edible green vegetables grown along the sites of the Sinza and Msimbazi rivers in Dar es Salaam, Tanzania. Food Chem 66:63-66
2. Cheng TO (2003) Why did green tea not protect against coronary artery disease but protect against myocardial infarction. Am J Cardiol 91:1290-1291
3. Chinese Ministry of Health (1988) Hygienic standard for tea GB9679-88, Beijing, China
4. Chinese Ministry of Health (2005) Hygienic standard for tea GB2762-2005, Beijing, China
5. Chugh KS, Singhal PC, Sharma BK (1975) Methemoglobinemia in acute copper sulfate poisoning. Ann Intern Med 82:226-229
6. Demirbaş A (2000) Accumulation of heavy metals in some edible mushrooms from Turkey. Food Chem 68:415-419
7. Ding L, Fan BW (2005) The problem of lead pollution in tea leaves (in Chinese). Guangdong Trace Elements Sci 12:6-11
8. Evans GW (1973) Copper homeostasis in the mammalian system. Physiol Rev 53: 535-570
9. Han WY, Liang YR, Yang YJ, Shi YZ, Ma LF, Ruan JY (2006a) Effect of processing on the Pb and Cu pollution of tea (in Chinese). J Tea Sci 26:95-101
10. Han WY, Zhao FJ, Shi YZ, Ma LF, Ruan JY (2006b) Scale and causes of lead contamination in Chinese tea. Environ Pollut 139:125-132
11. Hirano R, Momiyama Y, Takahashi R, Taniguchi H, Kondo K, Nakamura H, Ohsuzu F (2003) Comparison of green tea intake in Japanese patients with and without angiographic coronary artery disease. American J Cardiol 36:64-70
12. Katharine P (2001) Yet more roles for tea in disease prevention. Trends Pharmacol Sci 22: 501
13. Kumar A, Nair AGC, Reddy AVR, Gary AN (2005) Availability of essential elements in Indian and US tea brands. Food Chem 89:441-448
14. Marcos A, Fisher A, Rea G, Hill SJ (1998) Preliminary study using trace element concentrations and a chemometrics approach to determine the geographical origin of tea. J Anal At Spectrom 13:521-525
15. Muñoz E, Palmero S (2006) Determination of heavy metals in honey by potentiometric stripping analysis and using a continuous flow methodology. Food Chem 94:478-483
16. Narin I, Colak H, Turkoglu O, Soylak M, Dogan M (2004) Heavy metals in black tea samples produced in Turkey. Bull Environ Contam Toxicol 72:844-849
17. Richard R (2001) Green tea extract may have neuroprotective effects in Parkinson's disease. Lancet 358: 391
18. Tang CQ, Zeng XW, Lu JL, Liang YR (2003) Lead concentration in teas and its safety testing (in Chinese). J Tea 29:20-22
19. Tsushida T, Takeo T (1977) Zinc, copper, lead, and cadmium contents in green tea. J Sci Food Agri 28:255-258
20. Uauy R, Olivares M, Gonzalez M (1998) Essentiality of copper in humans. American J Clin Nutr 67(5 Suppl.):952S-959S
21. Wang CF, Ke CH, Yang JY (1993) Determination of trace elements in drinking tea by various analytical techniques. J Radioanal Nucl Chem 173:195-203