What Is Mold?

Molds are fungi that reproduce by releasing tiny spores into the air. Spores that land on moist objects may begin to grow. There are thousands of different types of mold and we encounter many of them every day, in our homes and outdoors.

Toxic mold is a type of mold that produces hazardous byproducts, called mycotoxins. While individuals with asthma and other respiratory problems may have reactions to many types of mold, it's thought that mycotoxins are more likely to trigger health problems in even healthy individuals. These toxins are believed to be linked to memory loss and to severe lung problems in infants and the elderly.

Floating particles of mold are invisible to the naked eye, so it's impossible to see where they might have landed until they begin to grow. Loose mold particles that accumulate on items within a house are easily inhaled and can be a constant irritation to the people and pets who live there.

The toxic mold we hear most about is Stachybotrys chartarum, a slimy, greenish-black mold that grows on moisture-laden materials that contain cellulose, such as wood, paper, drywall, and other similar products. It does not grow on tile or cement.

Even if the mold in your home is not toxic mold, it can still be a problem, because any mold growing on organic materials will in time destroy them--and too much mold of any type smells bad and degrades air quality.  Mold thrives in damp, humid conditions: Bathrooms with poor ventilation. Install an exhaust fan if possible.

Clothes dryers and exhaust fans that vent under the house or back into the room. Vent them to the outside.  Flood Damage Houses that have been flooded are at serious risk for molds, especially in areas when are high humidity and temperatures provide the mold with the perfect place to reproduce before cleanup begins.

The houses flooded by the aftermath of Hurricane Katrina - -some still sitting in water--are the perfect example of homes that will likely suffer extreme damage from mold.  Help Discourage Mold Growth:  Install a dehumidifier in chronically moist rooms.

 Molds are fungi that can be found both indoors and outdoors. No one knows how many species of fungi exist but estimates range from tens of thousands to perhaps three hundred thousand or more. Molds grow best in warm, damp, and humid conditions, and spread and reproduce by making spores. Mold spores can survive harsh environmental conditions, such as dry conditions, that do not support normal mold growth.