There are many sources of moisture found in basements. Basement often get little or no sunlight and limited ventilation. They often have the highest level of humidity in a house.
Basements are therefore one of the most susceptible areas for mold and fungi growths. With the assistance of dust and dirt in unattended basements and the nutrients in wood these growths can go unnoticed for extended periods of time. Forced air heating systems with limited air filtration can spread the spores through out the house. People have various sensitivities to these growths and some types can be a serious health hazard.
The best way to avoid this concern is to get rid of the conditions that cause the problem. Reduce humidity levels and moisture problems in the basement and provide adequate ventilation and keep basements clean. Call Know Your Home Inspections Inc. for more details on limiting this potential problem in your home.