Dead mold appears flaky and powdery, unlike living mold that appears moist and grows in various colors, such as white, black, or yellow. Most of the time, it is difficult to smell mold toxins, especially once the mold is dead.
Dead Mold. Dead mold has a powdery, flaky appearance. To confirm it is dead, brush the surface with a broom. It is most likely dead if it easily brushes off and becomes airborne.
When mold is deprived of its moisture sources, it can “dry out.” But this doesn't mean it's dead. Instead, mold becomes temporarily dormant and will reactivate if it's exposed to a new moisture source. Dry mold can become airborne. If mold is dried out, it can actually be at greater risk of becoming airborne.
Green-Black Mold – A toxic color combination.
This type of mold is one of the most dangerous molds that we find. It poses a hazard to your health and any living thing it reaches due to its deadly mycotoxins.
Toxic mold can also have a grayish, soot-like texture, or a slimy, wet surface. In some cases, you may even notice furry orange or brown spots. If you find mold with any of these qualities in your home, don't get too close, and call a professional right away.
Moulds are larger, complex and grow as long, multi‑celled filaments (hyphae). Those filaments can aggregate to form larger masses (referred to as mycelia) visible to unaided eye. That is why we can see mould growth, for example, on a wall surface. Bacteria are smaller, single-celled and less complex.
You cannot tell the kind of mold by the color. Mold is identified by the structure and the characteristics of the spores and growth structures (morphology)*. Furthermore, the color of your actively growing mold indicates nothing about health risk and exposure.
1. Stachybotrys. Commonly referred to as “black mold,” stachybotrys is one of the most dangerous types of mold and can cause flu-like symptoms, diarrhea, headaches, memory loss and severe respiratory damage.
Black mold, as the name implies, is often dark in color. When searching for black mold, look for circular-shaped spots that are black, dark green or dark brown. Some black mold can also take on shades of orange or have flecks of white within it. Most of the time, black mold has a slightly furry appearance.
When mold dries out and becomes temporarily inactive, it is considered “dead” mold. This happens when mold is killed, perhaps with bleach, but not removed. Dead mold appears flaky and powdery, unlike living mold that appears moist and grows in various colors, such as white, black, or yellow.
Inactive mold is dry and powdery, and the surface layer can generally be readily brushed off the surface. Inactive mold can easily become active given the right environmental conditions. Mold can also cause staining of materials, which may be permanent even after the mold has been removed.
Do You Need to Treat Inactive Mold? Any indoor mold should be treated, especially because seemingly “dead” mold might become reactivated by moisture. Proper mold cleanup involves more than just disinfecting the area.
Without constant moisture, mold will become inactive but they never die unless you get rid of them completely. They can always come back to life in the presence of moisture and multiply rapidly causing serious health problems.
Spores can remain for hundreds of years. These stubborn spores will hold out as long as it is necessary to find water again. Even if you cut off the supply of water or humidity to a mold infestation, it won't just “go away.” It will still remain there in its dormant state.
For example, you're more likely to develop symptoms quickly if you directly handle mold. This can happen during activities like cleaning or touching moldy items. If you're allergic or sensitive to mold, it's important to avoid direct contact with mold as much as possible.
These symptoms usually first appear 2 to 9 hours after exposure and last for 1 to 3 days. Other affected persons have progressive shortness of breath and cough, as well as weight loss.
The most common indoor molds are Cladosporium, Penicillium, and Aspergillus.
More than three decades of research show that mold exposure, particularly at home, can cause people to feel tired or develop chronic fatigue. It's due to mycotoxins, which are toxins produced by mold, decreasing oxygenation in the body, among other reactions that cause people to feel tired.
Mold, if left untreated, can get worse and lead to respiratory infections. So it's important to be aware of what your body is telling you, as well as the condition of the area where you suspect mold. Mold is not isolated to just indoor locations.
Even after mold remediation, in some cases, a visible difference in color remains between mold-affected areas and those unaffected by mold. Sometimes dark or even black stains may still be noticeable. The area can be free of mold (due to mold remediation) yet remain visibly stained.
Lung Infection
Rizzo. One such infection caused by mold is aspergillosis. Mild cases trigger allergy-like symptoms; however, an invasive form can spread to other parts of the body, such as the brain, heart, and kidneys, and it can be fatal, says the Mayo Clinic.
Long-term mould exposure can cause severe issues that can last for a long period of time and may cause irreversible damage to the human body, so it is important to never ignore that bit of mould growing.