Mold spores, which are the primary cause of mold allergies, are present in the air throughout the year. They are especially prevalent in damp indoor areas such as the basements, washrooms, bathrooms, and garages. These spores are invisible to the naked eye and so small such that they can easily bypass the natural protective mechanisms […]
Mold in Homes? Here’s What You Need to Know
Mold in homes is unsightly and could create serious health problems. Small airborne mold spores or particles can be inhaled deep into the lungs. Inhalation of mold spores can lead to respiratory problems. Mold spores could be both toxigenic (i.e., have toxic effects) and allergenic. Mold is especially common in basements of old homes where […]
How to Distinguish Mold Growth from Stains & Other Common Discolorations
The first step in any mold investigation is a visual inspection of the building and documentation of the area(s) covered by visible mold growth. This requires the ability to recognize mold growth as opposed to dirt, stains or other discolorations. mold investigators sometimes come across discolorations or stains that they suspect to be mold growth, only […]
Aspergillus/Penicillium and Unidentified Spores: What Should You Know?
Indoor air sampling for mould spores may be conducted to help in evaluating the air quality after occupants’ complaints of ill health, to determine the effectiveness of remediation procedures, to assess health hazards or to proactively monitor indoor air quality. Mould spores enter a building from outdoors through: air intakes for the heating, ventilation, and/or air conditioning system (HVAC), doors […]
Indoor Molds that Produce Known Mycotoxins on Building Materials
This article discusses common indoor molds that produce mycotoxins and the materials on which they are commonly found. The general public thinks that black indoor molds are toxigenic because of the publicity that Stachybotrys chartarum (a.k.a Stachybotrys atra in the old literature), a black mold, received in the recent years. However, the colour of the indoor […]
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