The sensory pollution load and microbial contamination of glass-fibre filters at high and low relative humidity were investigated in an experimental set-up in the laboratory. Dust and particles from the outdoor air were collected in two EU7 glass-fibre filters for a pre-conditioning period of 16-18 weeks during which there was a constant airflow with a velocity of 1.9 m/s through the filters. One of the filters was exposed to outdoor air of approximately 40% relative humidity and 10°C, the other to outdoor air of approximately 80% relative humidity and S0 C.
Data on moisture sources, winter condensation potential, C02 levels, levels of biological contamination and blood lymphocytes from fifty nine houses subjected to detailed testing and inspection in a previous phase of the Wallaceburg study were subject to more detailed statistical evaluation to determine the relationships between moisture sources, fungal growth and objective measures of health.
Login