Among 17 homes in Switzerland, the relationship between indoor and outdoor levels for particulate matter less than 10 mum (Pm10), particulate matter less than 2.5 mum (PM2.5) and NO2 was investigated.
In 10 homes, the inhabitants also participated in conducting personal measurements.
All homes were naturally ventilated.
In homes without any indoor sources and where human activity was low, PM10 I/O ratios amounted to approximately 0.7. Of the indoor sources, smoking had the highest influence on I/O ratios (>1.8).
In homes not containing any apparent source, human activity'was an important factor accounting for high indoor levels.
However, this factor is difficult to quantify.
Personal exposure was in most cases higher than the indoor and the corresponding home outdoor levels.
For NO2, gas-cooking was found to have the strongest influence on elevated I/O ratios (>1.2) whilst for other homes, the I/O ratio was less than 1.
Mots-clés Pascal : Suisse, Europe, Pollution intérieur, Pollution air, Etude comparative, Particule en suspension, Azote dioxyde, Teneur air ambiant, Logement habitation, Inventaire source pollution, Zone urbaine, Exposition, Qualité air, Particule fine, Contrôle
Mots-clés Pascal anglais : Switzerland, Europe, Indoor pollution, Air pollution, Comparative study, Suspended particle, Nitrogen dioxide, Ambient air concentration, Housing, Pollution source inventory, Urban area, Exposure, Air quality, Fine particle, Check
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0126864
Code Inist : 001D16C06. Création : 22/06/1998.