Characterization of Particle Size Distributions of Powdery Building Material Aerosol Generated by Fluidization and Gravitation


  • Tadas Prasauskas
  • Aida Žemaitytė Kaunas University of Technology
  • Edvinas Krugly Kaunas University of Technology
  • Darius Čiužas Kaunas University of Technology
  • Dainius Martuzevičius Kaunas University of Technology



air pollution, powdery building materials, particulate matter, particle size distribution


This study aims to identify particle size distributions (PSD) of aerosol of powdery building materials commonly used in construction work (cement, chalk, clay, wood sawdust, wood grinding dust, gypsum, hydrated lime, masonry grout, quartz sand, sand and structural lime) by two aerosolization methods: fluidization and gravitation. Fluidization and gravitation methods represent industrial activities such as pneumotransportation and unloading. Both particle resuspension mechanisms have been modelled in laboratory conditions.
The particle size distributions of resuspended particulate matter from powdery building materials were rather similar identified by both fluidization and gravitation methods, with an exception of wood sawdust and sand. The PM10 fraction ranged between 30% and 87%, PM2.5 from 7% to 28% and PM1.0 from 3% to 7% of the total mass of particulate matter. The highest PM10/PMtotal ratio was calculated for masonry grout - 0.87, and the lowest ratio for quartz sand - 0.30. The highest ratio of PM2.5/PMtotal was calculated for sand - 0.23, the lowest for quartz sand - 0.07. Substantial quantities of PM2.5 were found to be emitted implying a potential threat to human health.


Author Biographies

Tadas Prasauskas

Department of Environmental Engineering

Aida Žemaitytė, Kaunas University of Technology

Department of Environmental Engineering,

Edvinas Krugly, Kaunas University of Technology

Department of Environmental Engineering

Darius Čiužas, Kaunas University of Technology

Department of Environmental Engineering

Dainius Martuzevičius, Kaunas University of Technology

head of the Department of Environmental Engineering