Environmental fluorine level in Tibet
Cao, J.; Zhao, Y.; Liu, J.; Xirao, R.; Danzeng, S.
Ying Yong Sheng Tai Xue Bao 11(5): 777-779
2000
ISSN/ISBN: 1001-9332 PMID: 11767542 Document Number: 521307
The concentration of fluorine in water, soil, fuel, food, vegetable and tea in Tibetan habitats with different environmental characteristic were measured by ion-specific electrode potentiometer. The results showed that the fluorine concentration in water, soil, fuel, food vegetable, butter tea and Zanba both of them were made from brick teas was 0.06 mg.L-1, 0.45 mg.kg-1, 0.10 mg.kg-1, 0.06-0.33 mg.kg-1, 3.09 mg.L-1 and 3.61 mg.kg-1, respectively. The water-soluble fluorine content in brick tea which came from Sichuan and Yunnan Provinces reached up to 533.89-617.32 mg.kg-1. It is suggested that drinking brick tea may induce fluorosis in Tibetan habitats.