There are basically two different mold testing methodologies; Culturable/viable (alive) sampling and Non-culturable (spores that are alive or dead).
Healthy Home Inspections uses the latest technology and equipment to perform Non-Culturable mold sampling.
A culturable sample is the method used to grow
mold from spores collected on site. Using a Petri dish, an agar media, and one of the collection methods listed below, mold spores
are deposited into the agar. The dish is then sealed, sent to a laboratory and given time (2 to 3 weeks) to grow.
§ Swab
Lift
§ Bulk
Sample
§ Impact
Sampler
A disadvantage of culturable testing is the incomplete information provided by the final results. The mold(s) that grow in
the Petri dish are influenced by the agar media used, the atmospheric conditions (temperature, humidity), and the other mold species
that are competing for space and food (the agar).
The primary disadvantage, according the BSU (Ball State University), is that sampling results only affect the concentration of mold spores that are alive and can grow in the agar media being used, yet more than 80-95% of the spores in the air are not viable." They go on to reinforce the fact that "mold spores can cause allergic reactions and asthmatic attacks even if they are no longer alive."
Non-culturable Samples
Non-culturable samples provide a more accurate picture of the
mold present in the home or office. This method of sampling collects spores onto a slide which is then sent
to a laboratory for concentration counts and genus identification. Results from these samples can be returned within 24 hours with
expedited service. Non-culturable sampling does not allow for species recognition which is its major limitation. Samples may be taken
from one area of visible contamination or as an air sample to determine the number of spores in the breathing environment.
§ Tape
Lift
§ Air-O-Cell/Micro 5
The Air-O-Cell/Micro 5 method is deemed the most reliable when attempting to determine if a mold problem exists. When using this
air sampling method, a sample must be drawn from the area of suspected contamination, as well as from the outdoor environment. It
is only through the comparison of the concentrations and species that a determination can be made of the possible mold infestation.
As
stated by BSU, total mold spore sampling has the advantage of collecting most airborne spores that are drawn into the collector. Since
allergenicity is independent of viability, results from this method are in most cases a much better indicator of health risks than
the culturable/viable method.
The Air-O-Cell cassette has one major advantage; it can be used to determine the presence of Stachybotrys and other mold species inside wall cavities.
Call 770-554-0575 today or contact us via this website to schedule a mold test appointment.