What is an asbestos-containing material?
Asbestos-containing materials are defined as those materials which contain 1% or more asbestos. Some materials, however, are considered to be asbestos-containing with <1% asbestos (e.g. vermiculite insulation). There are six types of asbestos: Chrysotile, Amosite, Crocidolite, Tremolite, Anthophyllite, and Actinolite.
What materials can contain asbestos?
Asbestos was added to over 3000 building products. Within the typical residential home or commercial building built before 1987, asbestos can be found in the following building products:
How do I collect a sample of a suspect asbestos-containing material?
When collecting samples, avoid creating or breathing any dust. Mist the area with water prior to sampling to avoid creating any dust. Whenever possible, wear a NIOSH approved respirator while sampling. Samples can be taken by using a clean knife to cut out a small piece of material. Be sure to penetrate any paint or protective coating and to sample all layers of the material. Place the sample in a zip lock bag and wipe the exterior with a damp cloth to remove any material which may have adhered to it during sampling.
What size of sample is required for asbestos analysis?
For most materials, a small sample is sufficient for analysis; approximately 2 square inches or 2 tablespoons. For Vermiculite/Zonolite insulation, it is recommended that three separate samples of two cups each be collected to ensure accurate analysis.
What causes mould growth indoors? Where can mould grow?
Airborne fungal spores are almost everywhere, however several factors must be present for these propagules to grow and reproduce. Fungi require a source of nutrients, water/moisture, and appropriate temperatures to proliferate. Any building materials of organic origin (drywall, plywood, pipe insulation, etc.) are susceptible to fungal growth if moisture is present.
What types of mould can cause adverse health effects?
While all fungal propagules have the potential to cause adverse health effects, the fungi most often associated with indoor air contamination include Alternaria, Aspergillus, Penicillium, Chaetomium, Aureobasidium, Stachybotrys and Trichoderma.
What are the effects of mould growth indoors? Who is at risk?
Fungal agents produce allergens, irritants and in some cases, toxins that may cause reactions in humans. Individual reaction to fungal exposure is quite varied, and although anyone can be affected, some people may be more susceptible and at greater risk, including infants and children, the elderly, pregnant women, individuals with respiratory conditions and asthma, individuals with allergies and persons with weakened immune systems.
How do I collect a mould tape-lift sample?
Tape-lift samples are a relatively simple method of collecting mould samples. Using a piece of clear Scotch tape (not opaque or duct tape), gently press onto the surface of suspected mould growth. Peel the tape off the surface, holding it by the edges as much as possible, and place it inside a clean zip lock bag.
What is the turnaround time for sample analysis?
Regular turnaround time for sample analysis is 1-3 business days. Rush analysis (within 24 hours) is also available at an additional charge.