A comparison between tracer gas and tracer particle techniques in evaluating the efficiency of ventilation in operating theatres

Author:

Andersson Per-Arne,Hambraeus Anna,Zettersten Ulla,Ljungqvist Bengt,Neikter Kenneth,Ransjö Ulrika

Abstract

Operating theatres are ventilated for a number of reasons, one of them being to keep numbers of airborne bacteria low at the operation wound. No matter how air is brought into the room, bacteria are removed by dilution rather than by air currents, because of turbulence caused by heat liberated by people and equipment and by movement in the room (Lidwell & Williams, 1960). With ventilation rates up to 20 air changes/hour, the dilution may differ at different sites in the room depending on the design of its ventilation system.

Publisher

Cambridge University Press (CUP)

Subject

Public Health, Environmental and Occupational Health,Immunology

Reference10 articles.

1. Wieoersma N. (1980). The bacteriological safety of air movements and air changes in operating theatres. Thesis. Rijksuniversiteit te Groningen. Krips Repro Meppel.

2. Some observations on the interaction between air movements and the dispersion of pollution;Ljungqvist;Swedish Council for Building Research,1979

3. The evaluation of ventilation

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