Indoor Molds

Exposure pathway(s) of molds

Molds are present in nearly all environments. Humans are primarily exposed to these molds through inhalation. Fungal spores can remain in air for varying lengths of time allowing them to enter the respiratory system when inhaled. (Photo: Mold growing on a piece of ceiling tile)

Exposure can also occur through ingestion. Mold spores can be present on foods that are eaten. Spores are also ingested through hand-to-mouth contact of moldy surfaces.

Once the spores enter the host whether inhaled or ingested, they go through various physiological processes. Some of these processes form toxins to the human body called mycotoxins. Health effects include respiratory sensitization, asthma, asthma exacerbation, and stomach ailments. Studies have found that the elderly, children and immuno-compromised individuals are more susceptible to the side effects of mold exposure.

REFERENCES

Levy, Barry S.; Wegman, David H. Occupational Health: Recognizing & Preventing Work-Related Disease & Injury, 4th Edition; Lippincott Williams & Wilkins 2000.

http://www.schs.state.nc.us/epi/oii/mold/healtheffects.html
Mold and Human Health. 9/29/03

http://www.cehn.org/cehn/indoormold.html
Children’s Environmental Health Network – Indoor Mold Fact Sheet. 9/29/03