What is Mold?

Molds are part of the natural environment.

Outdoors, molds play a part in nature by breaking down organic matter such as fallen leaves and dead trees, but indoors, mold growth should be avoided.

Molds reproduce by means of tiny spores; the spores are invisible to the naked eye and float through outdoor and indoor air.

Mold may begin growing indoors when mold spores land on surfaces that are wet. There are many types of mold, and none of them will grow without water or moisture.

Mold hides, so testing is the only way to be sure your home, apartment, or office is healthy.

Can mold cause health problems?

YES! Molds have the potential to cause health problems by producing allergens (substances that can cause allergic reactions), irritants, and in some cases, potentially toxic substances (mycotoxins).

Inhaling or touching mold or mold spores may cause allergic reactions in sensitive individuals. Allergic responses include hay fever-type symptoms, such as sneezing, runny nose, red eyes, and skin rash (dermatitis). Because they are so small, mold spores may evade the protective mechanisms of the nose and upper respiratory tract to reach the lungs.

Allergic reactions to mold are common. They can be immediate or delayed. Molds can also cause asthma attacks in people with asthma who are allergic to mold. In addition, mold exposure can irritate the eyes, skin, nose, throat, and lungs of both mold-allergic and non-allergic people.

Symptoms other than the allergic and irritant types are not commonly reported as a result of inhaling mold. Research on mold and health affects is ongoing.

Fungi or microorganisms related to mold may cause other health problems similar to allergic diseases. Some kinds of mold may cause several different illnesses, including infections and allergies.

In people with lung damage or serious underlying illnesses, microtoxins may grasp the opportunity to invade the lungs or the whole body.

This site provides a brief overview; it does not describe all potential health effects related to mold exposure. For more detailed information consult a health professional. You may also wish to consult your state or local health agency.