Ultrafine, fine and coarse airborne particle mass concentration in workplaces
As epidemiological studies have shown a significant association between exposure to particles and mortality and
morbidity, depending on their different deposition efficiency in the pulmonary region, size-segregated parti-
culate matter (PM) samples were collected in workplaces where high PM concentrations were expected and
compared with the results from urban and background atmospheres.
We investigated the following workplaces: an analytical chemistry laboratory, a wastewater treatment plant,