Microbial Air Quality in Municipal Buses Before and After Disinfection of their Air-Conditioning Systems

• Autorzy: Gołofit-Szymczak Małgorzata , Stobnicka-Kupiec Agata , Górny Rafał L. , Cyprowski Marcin , Ławniczek-Wałczyk Anna

Identyfikatory

DOI

10.12911/22998993/113408

• Języki publikacji: EN

Abstrakty

EN

To ensure the proper quality of the air and simultaneously improve the comfort of professional drivers or travellers, the cars are fit with air-conditioning (AC) systems. The AC installations, however, quite often create suitable conditions for the development of microbiological agents and become an active emission source of harmful bioaerosols. This study was carried out in 6 municipal buses in large city located in central Poland. In studied vehicles, ozonisation or manual application of chemical disinfectant in a spray form were used for disinfection of AC bus systems. The concentrations of bacteria and fungi in the air collected in buses before the service of their AC installations were 4.3×10² CFU/m³ and 2.4×10² CFU/m³, respectively. After AC service using both tested disinfection methods, the decrease in microbial concentrations in the air of municipal buses was observed. The highest effectiveness of AC cleaning was noted when the chemical disinfectant in a spray form was used. This study revealed that to eliminate microbiological contamination and, by that, decrease the exposure of both drivers and passengers to harmful microbial contaminants, the chemical disinfection of bus AC system should be performed at regular basis.

Słowa kluczowe

EN

buses; air-conditioning system; bioaerosol; bacteria; fungi

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2019
• Tom: Vol. 20, nr 10
• Strony: 189--194
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Gołofit-Szymczak Małgorzata

• Department of Chemical, Aerosol and Biological Hazards, Central Institute for Labour Protection – National Research Institute, Czerniakowska 16 Str., 00-701 Warsaw, Poland

autor

Stobnicka-Kupiec Agata

• Department of Chemical, Aerosol and Biological Hazards, Central Institute for Labour Protection – National Research Institute, Czerniakowska 16 Str., 00-701 Warsaw, Poland

autor

Górny Rafał L.

• Department of Chemical, Aerosol and Biological Hazards, Central Institute for Labour Protection – National Research Institute, Czerniakowska 16 Str., 00-701 Warsaw, Poland

autor

Cyprowski Marcin

• Department of Chemical, Aerosol and Biological Hazards, Central Institute for Labour Protection – National Research Institute, Czerniakowska 16 Str., 00-701 Warsaw, Poland

autor

Ławniczek-Wałczyk Anna

• Department of Chemical, Aerosol and Biological Hazards, Central Institute for Labour Protection – National Research Institute, Czerniakowska 16 Str., 00-701 Warsaw, Poland

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