Molds are part of the ecosystem and help to decompose dead organic matter such as leaves and dead trees. Molds are usually not a problem indoors but can have the potential to cause problems if their spores land on a wet or damp area conducive to their growth. Molds produce the tiny spores to reproduce. They can grow on wood, paper, carpet and foods. When excessive moisture or water accumulates indoors, mold growth will often occur, particularly if the moisture problem remains undiscovered or unaddressed. The way to control indoor mold growth is to control moisture. If mold is a problem in a home, it should be addressed promptly and the cause of the excess moisture should be fixed. It is important to dry water-damaged areas and items within 24 to 48 hours to prevent mold growth.

 “Molds have the potential to cause health problems and allergic reactions such as sneezing, runny nose, red eyes and skin rash,” says EPA Administrator Christie Whitman. “If you already have a problem, act quickly, mold damages what it grows on, the longer it grows the more damage it can cause.” Additionally, molds can trigger asthma episodes in sensitive individuals with asthma; molds can also trigger allergies in sensitive individuals.

Ten Things You Should Know About Mold

1. Potential health effects and symptoms associated with mold exposures include allergic reactions, asthma, and other respiratory complaints.
2. There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture.
3. If mold is a problem in your home or school, you must clean up the mold and eliminate sources of moisture.
4. Fix the source of the water problem or leak to prevent mold growth.
5. Reduce indoor humidity (to 30-60% ) to decrease mold growth by: venting bathrooms, dryers, and other moisture-generating sources to the outside; using air conditioners and de-humidifiers; increasing ventilation; and using exhaust fans whenever cooking, dishwashing, and cleaning.
6. Clean and dry any damp or wet building materials and furnishings within 24-48 hours to prevent mold growth.
7. Clean mold off hard surfaces with water and detergent, and dry completely. Absorbent materials such as ceiling tiles, that are moldy, may need to be replaced.
8. Prevent condensation: Reduce the potential for condensation on cold surfaces (i.e., windows, piping, exterior walls, roof, or floors) by adding insulation.
9. In areas where there is a perpetual moisture problem, do not install carpeting (i.e., by drinking fountains, by classroom sinks, or on concrete floors with leaks or frequent condensation).
10. Molds can be found almost anywhere; they can grow on virtually any substance, providing moisture is present. There are molds that can grow on wood, paper, carpet, and foods.