Mold

If mold is a problem in your home, clean up the mold and get rid of the excess water or moisture. Fix leaky plumbing or other sources of water. Wash mold off hard surfaces with detergent and water, and dry completely. Absorbent materials (such as ceiling tiles & carpet) that become moldy may have to be replaced. Learn more.   

EPA Guide to Moisture and Mold

What are molds and where are they found?
Molds are fungi found both indoors and out, almost everywhere in the environment. They can grow all year long and grow best in warm, damp and humid conditions. Molds spread by making spores that can survive harsh environmental conditions that normally do not support mold growth.

In the home, mold is almost always present in the air and grows best in damp areas with high humidity levels, like bathrooms and basements. While there are perhaps thousands of species of mold, most common indoor molds include Cladosporium, Penicillium, Alternaria and Aspergillus.

Kentucky Cabinet for Health & Family Services Mold Information