Assessment of Integrated Aerosol Sampling Techniques in Indoor, Confined and Outdoor Environments Characterized by Specific Emission Sources

This paper highlights advantages and drawbacks due to the use of portable low-cost devices for aerosol sampling, showing their performances during an monitoring campaign with parallel gravimetric sampling reference method a cascade impactor. A specific was held running all instruments in indoor, confined, outdoor environments characterized by local emission sources or particulate matter background concentrations. PM2.5 concentrations were used compare data emerging from different adopted. Significant underestimation emerged when comparing coming optical sensors those estimated impactor, whose resulted being coherent determination, integrated over same time. cause–effect relationship between found observing daily patterns real-time devices. It that are useful detecting concentration trends, presence peak values, changes value, even if limited accuracy precision. The comparison particle size distributions obtained impactor allowed us define which sizes not detected devices, evidencing low representativeness health exposure measurements. correlations among fractions particularly high car emissions semi-confined garage area.