Generally, Indoor Air Quality (IAQ) concerns and odors are caused by floor drains and sink traps that are dry; laboratory activities performed outside a fume hood; chemical spills, smoking, and construction activities (e.g., painting, sealing and welding). Occupational Health & Safety investigates IAQ concerns and odors.
Fact Sheet: Carbon Monoxide Poisoning: A Silent Killer
Safety Policies and Procedures Manual: Indoor Air Quality
Safety Policies and Procedures Manual: Smoking Prohibited