Title Characterization of particle size distributions of powdery building material aerosol generated by fluidization and gravitation
Another Title Birių statybinių medžiagų aerozolio dalelių dispersinės sudėties apibūdinimas fluidizacijos ir gravitacijos metodais.
Authors Prasauskas, Tadas ; Žemaitytė, Aida ; Krugly, Edvinas ; Čiužas, Darius ; Martuzevičius, Dainius
DOI 10.5755/j01.erem.61.3.1519
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Is Part of Environmental research, engineering and management = Aplinkos tyrimai, inžinerija ir vadyba.. Kaunas : KTU. 2012, No. 3, p. 50-57.. ISSN 1392-1649. eISSN 2029-2139
Keywords [eng] air pollution ; powdery building materials ; particulate matter ; particle size distribution
Abstract [eng] 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.
Published Kaunas : KTU
Type Journal article
Language English
Publication date 2012
CC license CC license description