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Arsenic and old toenails
Date:2/22/2009

potential health risks in this case, if any, are not yet clear and no arsenic related health issues have been reported. A large-scale and more detailed biomonitoring study is required to confirm these initial results."

Dr Jenkin, lecturer in Applied Geology at the University of Leicester said: "This is the first time that the chemical form of the arsenic in the toenails has been measured that can tell us something about how it got in there and possible risk factors.

Dr Jenkin added: "There is definitely more research needed to look at - amongst other things - a larger sample of volunteers, to see if the values change with time (it is quite possible the high values recorded are a one-off for that person, or due to slow toenail growth concentrating harmless quantities of arsenic), and to look at the possible pathways by which the arsenic is ingested. Coupling our analyses with regular blood measurements would be very revealing."

However the researchers are definitely NOT requiring people to send in their toenail clippings. Neither can you assess arsenic contamination simply by looking at your toenails.

Dr Jenkin said: "Even in those people with elevated amounts it is present in tiny quantities less than 0.003% in the toenail. In people who have not been exposed at all it is less than 0.00003%. If a nail looks different from normal that is usually due to physical damage (you stubbed your toe or dropped something on it) or a minor fungal infection that can be easily cleared up by a visit to the doctor."


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Contact: Dr. Gawen Jenkin
grtj1@leicester.ac.uk
44-116-252-3934
University of Leicester
Source:Eurekalert

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