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What are
these Mold Spores & Why are they so Dangerous to
our bodies?
Mold
spores are tiny bacteria less than 4 microns in size
-- so small that as many as 250,000 spores can fit on
a pin head and a person/farmer can inhale as many as
750,000 of these spores per minute!
The
body has natural defense filtering systems (such as
mucous lining, coughing and sneezing) against dusty
air which helps remove some contaminants, BUT most contaminants
overpower and pass through these defenses. Mold spores
not only bypass defenses because of their number, but
also because they are so small.
Very
fine particles, like mold spores, move into, accumulate
and settle into the lower lungs. There they produce
toxins. Remember that the lungs transfer oxygen to the
bloodstream, and most of the actual exchange of carbon
dioxide and oxygen takes place in the lower lungs. Now
the lungs become a roadway for toxic materials to travel
through the bloodstream with the oxygen. The body's
reaction to the toxins permanently affects the lungs'
ability to transfer oxygen into the bloodstream. The
lung tissue becomes permanently scared and each exposure
to mold spores increases the damage.
The
body's last defense against these tiny invaders is to
develop an allergy producing cold or pneumonia-like
symptoms.
Places to Examine Mold Growth
Look
especially for black, grey-brown, grey-green or pink
mold areas. Gently pull back rippled, water damaged
wallpaper or wallboard paper in order to look at what
molds may be underneath. If you discover mold... STOP
Contact Us for
a free consultation. If ducts are suspect, dab a little
sticky tape into their interiors to sample the materials
adhering to their surfaces. When you find suspected
mold growth, impress it onto sticky tape (cellulose-acetate,
e.g., Scotch brand) and examine it under the microscope.
Under the microscope, make sure you see not just conspicuous
dark conidial types but also less conspicuous hyaline
conidia, especially small, roundish conidia in chains,
signifying the presence of Penicillium or Aspergillus.
Look also for arthropods, their exoskeletal fragments,
and their fecal pellets. Fungivorous (fungus-eating)
mite pellets are rounded and usually full of conidia.
Booklouse, beetle and millipede faeces, at least when
found in mold infestations, resemble short, broken cylindrical
columns composed of masses of conidia. Sometimes arthropod
pellets will contain interesting mold elements not seen
directly on the material sampled.
If
there are continued complaints and mustiness but no
mold is found, consider whether or not there are any
clues to where hidden mold may be. If building occupants
remember a substantial leak or flood (or similar incident,
e.g., fire extinguished with water) in a certain area,
consider inspecting the wall, ceiling or floor interior
at that place. The exterior of the damaged area may
have been superficially repaired, leaving all the interior
problems intact. You have 3 options. Call a certified
Industrial Hygenist, Contact Us, or perform a little
deeper investigation yourself. If you open a wall, wear
gloves, eye protection and a resperator (be fit tested
by a professional). Take out a ceiling tile or cut a
4- to 8-inch inspection port into the suspect area.
The same may be done in areas where wallboard or ceiling
tiles have become watermarked but the exterior is not
actually moldy. The interior space, which forms a sheltered
humid chamber facilitating fungal proliferation, as
well as a conduit for leaks, is far more likely to be
grossly moldy than the exposed exterior is. There is
actually plenty of airflow between wall and ceiling/floor
interiors and the inhabited parts of rooms, especially
at the joins, so molds inside structural interior spaces
are frequently sources of problems for building occupants.
If
there is no strong clue to where mold may be, this is
the best time to try air sampling, which is performed
by a certified industrial hygenist. Analyse culture
plates or strips in comparison to an outdoor air control
to determine if there is an unusual mold buildup in
the building. If there is, look up the mold's general
habitat characters in a reference work such as the Compendium
of soil fungi.
Use
the information given as a clue to what sort of indoor
microhabitat you will find the mold growing in. It is
best to use a medium such as DG18 (dichloran 18% glycerol)
that both osmotolerant fungi (drought-tolerating fungi
such as Aspergillus glaucus) and mesophilic fungi (fungi
such as Stachybotrys requiring high moisture levels)
are known to grow on. In addition to viable air sampling,
non-viable air sampling may be used (e.g., Rotorod).
It will detect significant dead elements such as effete
Stachybotrys conidia. An alternative to this non-viable
air sampling is direct microscopy of settled dust, e.g.,
from shelf surfaces. Dust from floors that are frequently
walked on with shod feet may be difficult to analyse
because of the deposition of outdoor mold spora elements.
Click
Here For an Introduction to Mold - Scientific Information,
Etc. |