Squalene and Cholesterol in Dust from Danish Homes and Daycare Centers Weschler, Charles J. ; Langer, Sarka ; Fischer, Andreas ; Bekö, Gabriel ; Toftum, Jørn ; Clausen, Geo Abstract Publication: Environmental Science and Technology Pub Date: May 2011 DOI: 10.1021/es103894r Bibcode: 2011EnST...45.3872W