Airaksinen M, Pasanen P., Kurnitski J., Seppänen O.
Bibliographic info:
Indoor air Feb. 2004, Vol 14, n° 1, pp 55-64, 6 Fig, 3 Tab., 23 Ref.

The aim of that study was to find out if a potential air flow from crawl space has an influence on the indoor air quality : is there a potential risk for the first floor apartments ? A balanced ventilation system is recommended.