Abstract
The objective of this study was to assess the exposure and inhaled dose of susceptible populations to chemical elements in atmospheric particles. Particles were sampled in schools, fitness centers and elderly care centers and k0-INAA was used to determine their chemical composition. Results show that besides the similar element concentrations measured in the outdoor levels of all micro-environments, the inhaled dose experienced by each one of the vulnerable population groups was significantly different, indicating that measurements of outdoor air concentrations do not provide an accurate estimation of the population exposure to particles and specific elements and of the respective dose.
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