Engvall K., Norrby C., Norbäck D.
Bibliographic info:
Indoor air, 3/2003, Vol. 13, No. 3, pp 205-312, 6 Tab., 27 Ref.

This study was carried out in nearly two hundred multi-family buildings, built before 1961, in Stockholm. Three thousand inhabitants answered first a questionnaire on symptoms and personal factors. In parallel energy saving measures and building characteristics were gathered. It appeared that major reconstruction of the interior were associated with an increase of some symptoms.