Ludmila Mašková 1, Jiří Smolík1, Tereza Travnickova1, Jaromir Havlica1,2, Lucie Ondráčková1, Jakub Ondráček1

  • 1 Institute of Chemical Process Fundamentals of the CAS, Rozvojova 135, 165 02, Prague 6, Czech Republic
  • 2 University of Jan Evangelista Purkinje, Ceske mladeze 8, 400 96 Usti nad Labem, Czech Republic

Received: January 28, 2016
Revised: May 16, 2016
Accepted: May 19, 2016
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Cite this article:
Mašková, L., Smolík, J., Travnickova, T., Havlica, J., Ondráčková, L. and Ondráček, J. (2016). Contribution of Visitors to the Indoor PM in the National Library in Prague, Czech Republic. Aerosol Air Qual. Res. 16: 1713-1721.


  • Temporal and spatial variation of size resolved PM was measured in a library.
  • Results showed the indoor air as well mixed.
  • A mass balance model was used to estimate basic parameters.
  • Visitors was the main source of indoor coarse PM.



Temporal and spatial variation of size resolved particulate matter (PM) was measured in the Baroque Library Hall of the National Library in Prague during four intensive campaigns by an Aerodynamic Particle Sizer and three DustTrak instruments. The analysis showed, the indoor air can be considered as well mixed and therefore the simple mass balance model was used to estimate basic parameters (ventilation rate, deposition rates and penetration factors). The results revealed that the movement of visitors during visiting hours is the main source of indoor coarse PM. Mass emission rates, estimated from the comparison of measured and modelled data indicates the visitors should contribute about 50 g of coarse particles yearly, which is about 35% of the total load of indoor PM.

Keywords: Indoor source; Deposition; Penetration; Library

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