Investigation of black soot staining in houses.

Describes a study designed to investigate sooting problems in houses where occupants reported regular burning of candles. Samples of stained carpets, filters and other materials as well as swab samples of black dust or soot were taken from five homes. Other potential pollutant sources were also identified by air quality audits conducted on each home. In addition, the study included a search of industry information to uncover best practices for cost-effective clean up and control of soot or staining problems.

Airway irritation of VOC mixtures based on the emissions of the finishing materials - PVC floorings and paints.

VOC emissions from building materials are assumed to cause irritation of eye and the upper airways (sensory irritation, SI) in the indoor environment. Four finishing products, two PVC floorings and paints, were selected to this study: PVC(+) and Paint(+) were accepted whereas PVC(-) and Paint(-) were not acceptable in the human sensory evaluation. SI potency of VOC mixtures representing the material emissions were tested by the mouse bioassay (ASTM E981-84 ). Both the paint mixtures were much poorer irritants than PVC(-), but stronger than PVC(+).