Mould is a type of fungus that can be found indoors and outdoors. However, mould should never be found indoors and when it is, it can lead to health problems for those who may be allergic or more susceptible (e.g. asthmatics). Mould needs moisture (e.g. water damage/leak or condensation) and a material (e.g. drywall or wood) for growth. Mould can spread by releasing spores into the air. It is important to keep mould growth indoors to a minimum. Try to clean up small areas of mould growth quickly and repair water leaks or damage.
Not all mould causes health effects, we can respond to mould in different ways. Although the extent of health effects from mould exposure is less known, efforts should be made to prevent mould growth indoors. There is a greater risk of illness for children, elderly, and people with asthma or weakened immune systems. If you or a family member feel unwell after being exposed to mould, speak with your health care provider.
Health Canada provides information about some of the health risks associated with mould exposures, locations where mould growth commonly occur, suggestions for controlling mould, and information for cleaning mould.
How do I clean mould and prevent mould growth indoors?
You can clean small and medium sized areas of mould by yourself, but you should consider getting professional help with extensive mould growth. Health Canada provides information for cleaning mould and preventing mould growth indoors.
Can the health unit test my indoor air quality or test for mould?
No, the health unit does not provide testing services for indoor air quality or mould. Contact a private laboratory or an environmental consultant for testing services.
