The object of measuring particulates
is to see what is airborne and whether there is sporulating
mold. In lay language, we might say it helps us to
determine whether or not spores are being released into the
air. If particulates the same size as mold are found,
it would indicate mold activity. The device used to
take the measurements is called a laser particle counter.
This photo shows
Sarah Keck of Paws for Health taking a reading of airborne
particulates. Indoor and outdoor
samples are compared. Readings
were taken in the crawl space, attic over the garage
as well as house, every room of the house, and garage.
||A series of measurements are taken
||The numbers! The significance
depends on several factors, including the comparison
between indoor and outdoor samples as well as the exact
particle sizes that show elevated counts.
No one is going to have a zero
count because these devices measure everything in the air. Only
three of the readings are actually relevant to mold. The
numbers have very little significance unless the difference
between indoor and outdoor air is marked. Today, most
of my house had better air quality than outdoors. Between
the readings on the laser particle counter, visual inspection,
and the mold dog, the house was given a clean bill of health.
3 October 2006
on next page
Mold in Crawl Space || Installation
of Crawl Space Encapsulation
Installation A-Z || Air Pressure
Attire || Duct Cleaning || Mold
Copyright by Ingrid Naiman
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