The basement becomes the storage area for boxes and materials not
regularly used. So, it is hardly surprising you would fail to notice any leaks
causing floors and walls to be damp. Excessive moisture is a favorable
condition for mold to grow. Apart from this moisture, humid air and organic materials are contributing factors causing mold to grow rapidly.
There are many types of molds that can cause harm and they are likely to be found in any part of your basement.
The one area of your home which is less visited and cleaned is probably your basement. The best way to control or prevent basement mold is by cleaning regularly, making periodic checks for dampness or moisture intrusion, and running a dehumidifier.
Your job is to keep your basement as dry as possible.

Mold Growth

Mold will also grow on any objects or building materials made of organic
substances. Basement mold can be found anywhere organic materials are
stored. Items such as drywall, wood, carpet, insulation, wallpaper, furniture, clothes, and cardboard boxes are all good examples of materials that grow mold rapidly under favorable conditions, like being stored in a damp basement.
It is also important to regularly check for leaks or damaged pipes. Once there is water in the basement, some molds begin growing within two days.
Basements usually are dark, have poor ventilation, and often become humid when no sunlight can reach them.

These underlying factors should be addressed if you don’t want mold to occur in your basement. Because we know, if mold goes unnoticed and starts to grow there, it will rapidly multiply and begin to affect other areas of the house, worsening the situation.

Factors to Consider

You can use the simple approach to preventing mold in your basement by
cleaning regularly and checking for dampness or water leaks periodically. You might also be able to detect the presence of basement mold just by the smell.
Because the basement is enclosed, and the airflow is slow moving, odors will accumulate and gradually become noticeable. Don’t ignore this sign.

Recommendations

Regularly check the whole basement for dampness or water leaks. Repair any broken pipes or leaking joints. Keep a battery back up on your sump pump. If you have an ejector pump, in addition to a sump pump, make sure it gets replaced at the end of it’s scheduled life. And most importantly, seek professional help if mold is discovered to be sure all basement mold is properly removed.