and from ergonomics), individual measures of exposure in
the air near respiratory tracts, estimation of the cutaneous
exposure [14] in development, and the biometrology of the
exposure. All these data, after exposure modelling, enable
reporting of various levels of variability [15]. So, the
various types of current studies of exposure, as they are
realized either in professional situations or in the general
population, are conducted by means of integrated
approaches. These approaches contain a description of
causes of exposure, measurement of the external dose, and
biomonitoring [13] of the respective sources of exposure so
that total exposure can be estimated.