Sources of Indoor Air Pollutants
What are the sources of air pollutants in homes?
There are several kinds of air pollutants in homes. The following are some common sources.
- burning of fuels in gas stoves
- building and furnishing materials
- renovation works
- new wooden furniture
- consumer products containing volatile organic compounds, such as cosmetics, fragrance products, cleaning agents and pesticides
- dry-cleaned clothing
- mould growth in a damp environment
- poor housekeeping or inadequate cleaning
- poor ventilation resulting in accumulation of air pollutants
What are the sources of air pollutants in offices and public places?
There are several kinds of air pollutants in offices and public places. The following are some common sources.
- ozone from photocopiers and laser printers
- emissions from office equipment, wooden furniture, wall and floor coverings
- consumer products containing volatile organic compounds, such as cleaning agents and pesticides
- particles of dust, dirt or other substances drawn into the building from outside
- activities in buildings, such as sanding wood, printing, copying, operating equipment, and smoking
- excessive level of bacteria, viruses and mould growth
- inadequate maintenance
- poor housekeeping and inadequate cleaning
- water problems, including water spills, leakages and condensation not promptly and properly fixed
- inadequate humidity control (relative humidity > 70%)
- brought into the building by occupants, infiltration or through the fresh air intake