Here are the answers to your questions: 1. Chemical Hazard Adverse Health Effect Specific Source in Construction Asbestos Lung cancer, mesothelioma Insulation, fireproofing, floor tiles Silica Silicosis Sanding, cutting, demolition Lead Poisoning, damage to nervous and reproductive systems Lead-based paint Carbon monoxide Asphyxiation Equipment exhaust 2. The two types of cancer caused by asbestos exposure are lung cancer and mesothelioma. 3. It is not required by law to remove asbestos in a renovated building. Asbestos-containing materials may remain in place if they are in good condition. However, if materials