What Are The Most Common Types and Varieties of Mold?

What Are The Most Common Types and Varieties of Mold?
One of the objectives of mold remediation professionals is to determine what type of mold is present in a property. This is important because it will help the professional and the property owner determine the relative health risk that the mold poses and how best to remediate it. Unfortunately, not all molds are the same, in fact there are over 1.5 millions species of mold in the world. However, only about 100,000 have been identified.
Mold is a fungus, as are mushrooms and yeast, and has a biologicial function as nature’s recycler consuming dead organic matter. Understanding it’s biological importance is essential to understanding why it poses health hazards. For the purposes of mold inspections and remediation, one of our goals is to identify whether or not the mold is allergenic, pathogenic, or toxigenic.
1. Allergenic Molds
Allergenic Molds: Not usually life-threatening but are most problematic for individuals with allergies or asthma. The challenge is figuring out what mold is triggering the reaction. Children are particularly susceptible to mold allergies.

Allergenic Molds

Not usually life-threatening but are most problematic for individuals with allergies or asthma. The challenge is figuring out what mold is triggering the reaction. Children are particularly susceptible to mold allergies.
2. Pathogenic Molds
Pathogenic Molds: Produce an infection of particular concern if your immune system is weak or compromised.  This type of mold can cause hypersensitivity pneumonitis, an acute response resembling bacterial pneumonia. An example is Aspergillus fumigatus, which can grow in the lungs of immune-compromised individuals.

Pathogenic Molds

Produce an infection of particular concern if your immune system is weak or compromised. This type of mold can cause hypersensitivity pneumonitis, an acute response resembling bacterial pneumonia. An example is Aspergillus fumigatus, which can grow in the lungs of immune-compromised individuals.
3. Toxigenic Molds (aka “toxic molds”)
Toxigenic Molds: Toxic molds produce mycotoxins that will make anyone sick. Possible reactions include immune suppression and cancer. Mycotoxins are chemical toxins present within or on the surface of the mold spore, which can be inhaled, ingested, or touched. An example of this is aflatoxin, one of the most potent carcinogens known to mankind. Aflatoxin grows on peanuts and grains, and on some other foods.

Toxigenic Molds

Toxic molds produce mycotoxins that will make anyone sick. Possible reactions include immune suppression and cancer. Mycotoxins are chemical toxins present within or on the surface of the mold spore, which can be inhaled, ingested, or touched. An example of this is aflatoxin, one of the most potent carcinogens known to mankind. Aflatoxin grows on peanuts and grains, and on some other foods.
In order to determine the exact species of mold, mold inspectors will usually recommend that a tape or swab sample is taken. Sometimes, air quality tests may also be recommend because air borne mold spores are not visible to the eye; such a test will enable the inspector to report back on the concentration of indoor spores. Samples are then sent to accredited laboratories who analyze them to determine the exact species. Over the years, we have received many lab reports that have identified these five most common indoor molds.
1. Alternaria
Alternaria is commonly found in your nose, mouth and upper respiratory tract and can cause allergic responses.

Alternaria

Alternaria is commonly found in your nose, mouth and upper respiratory tract and can cause allergic responses.
2. Aspergillus
Aspergillus is usually found in warm, extremely damp climates, and a common occupant of house dust.  This mold produces mycotoxins which is a poisonous chemical compound.

Aspergillus

Aspergillus is usually found in warm, extremely damp climates, and a common occupant of house dust. This mold produces mycotoxins which is a poisonous chemical compound. This mold variety can cause lung infections, aspergillosis.
3. Cladosporium
Cladosporium is a very common outdoor fungus that can find its way indoors and grow on textiles, wood and other damp, porous materials.  This mold triggers hay fever and asthma symptoms.

Cladosporium

Cladosporium is a very common outdoor fungus that can find its way indoors and grow on textiles, wood and other damp, porous materials. This mold triggers hay fever and asthma symptoms.
4. Penicillium
Penicillium is a very common species found on wallpaper, decaying fabrics, carpet, and fiberglass duct insulation. It is known for causing allergies and asthma.  Some species produce mycotoxins, one being the common antibiotic penicillin.

Penicillium

Penicillium is a very common species found on wallpaper, decaying fabrics, carpet, and fiberglass duct insulation. It is known for causing allergies and asthma. Some species produce mycotoxins, one being the common antibiotic penicillin.
5. Stachybotrys
Stachybotrys is extremely toxic “black mold” that produces mycotoxins that can cause serious breathing difficulties and bleeding of the lungs. This mold can be found on wood or paper.

Stachybotrys

Stachybotrys is extremely toxic “black mold” that produces mycotoxins that can cause serious breathing difficulties and bleeding of the lungs. This mold can be found on wood or paper.
If you have questions or suspect you have mold issues, call us toll free, 1-888-909-6653 or use the form below.

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  1. Pingback: Where there is mold there is the potential for unhealthy air | Got Mold? Indoor Air Quality Specialists

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