What is Mold?

Mold is a type of fungus that is present in our natural environment.  Mold spores, which are tiny microscopic “seeds”, can be found virtually everywhere, including in homes, and are a part of the general dust found in homes.  These spores can grow on building materials and furnishings if conditions are correct.  Excess moisture is the critical factor in any indoor mold problem.  Mold growth should not be tolerated in our homes.  Eventually, the moisture and mold will damage what it is growing on, which may include both the building material and personal belongings.  The key to preventing mold growth is to prevent moisture problems.

What does mold need to grow?

Mold only needs a few simple things to grow and multiply:

• Moisture
• Nutrients (food)
  • Infants and children
  • Elderly people
  • Individuals with respiratory conditions or sensitivities such as allergies or asthma
  • Persons having severely weakened immune systems (for example, people with HIV infection, chemotherapy patients, organ transplant recipients)

Of these, controlling excess moisture is the key to preventing and stopping indoor mold growth.

What are the health concerns?

Health effects from exposure to mold can vary greatly depending on the person and the amount mold in their home.  The types of health symptoms that may occur include coughing, wheezing, nasal and throat conditions.  People with asthma or allergies who are sensitive to mold may notice their asthma or allergy symptoms worsen.  Individuals with severely weakened immune system who are exposed to moldy environments are at risk of developing serious fungal respiratory infections.  WCDHD recommends that people consult a medical professional if they are concerned about the effects of a moldy environment on their health.

Are the risks greater for some people?

There is wide variability in how different people are affected by mold exposures.  However, the long term presence of indoor mold growth may eventually become un-healthy for anyone.  The following types of people may be affected more severely and sooner than others:

Those with special health concerns should consult a medical professional if they feel their health is affected by indoor mold.

Are some molds more hazardous than others?

Some types of mold can produce chemical compounds called mycotoxins although they do not always do so.  In some circumstances, the toxins produced by indoor mold may cause health problems.  Many, if not most, molds can produce potentially harmful substances, whether it’s allergens, mycotoxins, or other compounds.  All indoor mold growth should be removed promptly, no matter what type(s) of mold is present or whether it can produce toxins.

Home Investigation

How do I tell if I have a mold problem?

Investigate don’t test.  The most practical way to find a mold problem is by using your eyes to look for mold growth and by using your nose to