Fluorescent tracers provide a way of simultaneously assessing the mass of a
contaminant hazardous substance on the surface of the skin of a worker and
the area of skin exposed. These parameters, along with the duration of exp
osure and the estimated contaminant concentration in the skin contamination
layer, can be used to calculate the likely uptake through the skin. Repeat
ed assessment of the mass of tracer on a surface within a room or on the su
rface of the skin can also allow the net transfer of contaminant to that co
mpartment to be estimated. Qualitative evaluation of transfer processes usi
ng fluorescent tracers can help identify important secondary sources of exp
osure. (C) 2000 British Occupational Hygiene Society. Published by Elsevier
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