Macro- and micro-evaluation of air intake - a demonstration of the need for more optimal tools

Frydenlund F, Haugen E N, Ahlen C, Bryn I, Davidsen H, Hanssen S O, Mogedal G T
indoor air quality
Year:
2002
Bibliographic info:
Proceedings of Indoor Air 2002 (9th International Conference on Indoor Air Quality and Climate) - June 30 - July 5, 2002 - Monterey, California - vol 1, pp 362-367, 5 figs, 6 refs, 2 tabs

The study compares on 30 ventilation systems an hygienic factor determined from conditions at air intake (including moisture before and after drainage, porosity and contamination) and microbiological analysis of air. The aim is to identify ventilation systems potential risk for indoor air contamination.The study has shown a clear relationship between the microbiologic and the hygienic conditions; i.e. dry and clean intakes are less likely to be microbially contaminated. The method seems to identify potential problems, which could be confirmed by a microbiological study.

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