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Determination of exposure and probable ingestion of fluoride through tea, toothpaste, tobacco and pan masala.

Yadav AK, Kaushik CP, Haritash AK, Singh B, Raghuvanshi SP, Kansal A

Department of Environmental Science and Engineering, Guru Jambheshwar University of Science & Technology, Hisar, Haryana 125001, India. ashyaduvanshi@yahoo.co.in

Levels of water soluble and acid soluble fluoride in tea, toothpaste, tobacco and pan masala (mouth freshener) were estimated. These items are, generally, ignored while calculating the total dietary intake of fluoride. Tea, toothpaste, tobacco, pan masala (with tobacco and without tobacco) frequently expose human body to 3.88-137.09, 53.5-338.5, 28.0-113.0, 16.5-306.5 and 23.5-185.0 microg of fluoride per gram of these items, respectively. An effort was also made to quantify, on the basis of available studies, the probable human ingestion of fluoride through these substances. Increased leaching of fluoride from some of these substances has been observed in acidic conditions in the present study. The results can be extrapolated to acidic conditions of human stomach.

Published 20 March 2007 in J Hazard Mater, 142(1): 77-80.
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