Identifying Mold Types

Identifying Mold Types. Homeowners across the country are concerned about house molds. Leaks and cracks can spread mold in any corner or crevice of your home, regardless of the climate in your area.

These formations may be hazardous and even damage your property for days, weeks, or even months before they are noticed.

Certain molds are more hazardous than others; black mold identification has become a major concern for property owners in particular.

How do you know which molds are harmful and which aren’t? Knowing the characteristics of mold and the diseases they may cause is the first step. Read on to discover what molds in your home may be harming you right now!

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Stachybotrys Atra: Infamously Known as the “Black Mold”

A specific type of toxic mold is Stachybotrys atra, commonly known as Stachybotyrs chartroom. This is what most individuals mean when they say, “black mold,” although it may be found in grain or soil. It’s most commonly found in cellulose-rich building materials after water damage.

Black mold can’t grow in houses that have been properly inspected and have had waterproofing services installed because the moisture content is too high.

The surface of this mold looks glossy and black or dark green in color. It’s considered slimy by some, but it turns gray and powder-like when it dries.

With regard to determining if it’s the hazardous, harmful species of black mold, the only certain way is through a microscope. The appearance of Stachybotrys atra varies depending on the mold. The species can only be accurately identified after a thorough examination by an expert, followed by caution.


Any Mold Can Be Dangerous

Molds’ pigmentation and toxicity have nothing to do with each other. Some molds, such as Stachybotrys, turn black or dark green in color, although they do not include any of the toxins that characterize “black mold.”

Attempting to determine if a mold is harmful or not while looking at it is essentially impossible. As a result, when mold is discovered, it’s vital to contact a professional.

This holds true inversely – simply because a mold isn’t black, it doesn’t mean it is safe or non-toxic. Ultimately, certain molds may or may not be harmful or poisonous, yet they still signal a issue and need to be handled by an specialist.

Unless you are sure that they are safe and that you are wearing protective gear, do not attempt to remove them. When it comes to dealing with mold, it’s always recommended to contact a pro who can tackle the problem at its source by repairing faulty foundations or other moisture sources.

What is Mold?

Mold has a funguslike appearance with numerous identical nuclei. It affects the interior of a surface by growing in patches. Green, yellow, blue, gray, black, white, and brown are some of the colors that may be seen in its appearance.

Mold is a fungus that grows on the surface of a material and is difficult to completely eliminate. Building materials, such as drywall, wood, and insulation, are frequently damaged by this fungus.

Because cellulose is a chemical used by mold as a food source, these materials include it. Mold also thrives in humid, warm conditions.

Identifying Mold Types

Mold comes in a variety of shapes and sizes, each with its own characteristics. However, since some individuals are hypersensitive or allergic to these organisms, their responses may be different.

Molds are similar in appearance and belong to the same family. Unless you use a microscope and a testing kit, it’s nearly impossible to say what kind of mold you’ve discovered.

Consultation with a professional inspection firm is also the finest technique to determine the kind of fungus present in your home.

Non-viable sampling is the most common method used at Environix, and it allows us to see if mold is having an impact on indoor air quality.

It’s vital to remove the mold and clean the room if you want to avoid it spreading to the rest of your house, no matter what sort of mold it is.

Indoor mold, which can be found on clothes, insulation, paper goods, and walls, is commonly known as Aspergillus mold.

There are around 10,000 mold species, according to the CDC, making it impossible to identify them all. Mold species that are most frequently discovered in homes, however, are a few.



From tans and whites to brighter pinks and purples, Fusarium can be found in a wide range of colors. Many vegetarians and vegans consume fermented fusarium, also known as Quorn, as a meat substitute.

The typical fungus that grows in your home may cause allergic responses, while this fermented form is edible. Fusarium spreads quickly and may cause structural damage in your home.

With that in mind, the majority of this mold is found in the soil rather than in the home. Wheat, barley, and maize fields are commonly impacted, as are home garden crops.


In buildings that have been damaged by water, acremonium may be found. Since it spreads slowly, it’s easier to identify than other molds.

This mold starts off as a wet substance and transforms into a powdery substance. Acommmonium may range in color from grey to pink, and it can appear in a variety of hues.

You can eliminate this mold with a water and bleach solution if you catch it in time before it spreads. Open windows to allow air to flow through the area, and wear protective clothing and a mask to protect your health.

Mold spores may be dispersed in the air when they are sprayed. Sprinkle the solution over the area and use a gentle brush to clean it.


Mold of certain varieties needs more moisture than others. Because of the high humidity levels, Mucor is a good example of a mold that grows near HVAC systems. After repeated exposure, it may produce spores and cause allergic symptoms in white and grey patches.

Mucor is a cotton-textured mold that may be yellow or white. Schools, offices, and homes all have it in the air. This mold may be found nearly anywhere, from house dust to filthy carpets.

Despite the fact that this mold is prevalent, it poses a low-risk to most people unless they have a existing condition. This mold may make you Sicker and cause pulmonary illnesses, gastrointestinal illnesses, or cutaneous illnesses if you are already sick.


Aspergillus can be black, gray, white, brown, green, or yellow. It is the most common indoor mold species. Clothing, insulation, paper products, and walls are all common places for it to be found.

Molds can cause respiratory infections and allergies if you’re exposed to them. Aspergillus exposure can cause lung inflammation if your immune system is weak.

Aspergillus niger, Aspergillus flavus, and Aspergillus fumigatus are some of the most common varieties of aspergillus mold. Yellow-green to blue-green colors are found in these molds. Cotton or wool is often used to make them.

The effects of this kind of mold, which include allergic responses, may progress to more severe ailments such as Aspergillosis, a kind of lung ailment. You may apply a chemical or antifungal treatment to get rid of aspergillus if you identify it in your home.


In places like basements and attics, this kind of mold may be found because they don’t get enough light and have little ventilation. Cladosporium has a olive-gray color and has a velvety appearance. It, especially in infants, causes an allergic reaction. Infections in the fingernails, toenails, and eyes are also known to occur.

It’s advised to have an expert handle these fungus because they may cause severe infections. It’s also a good idea to treat it immediately, because if you don’t, it’ll spread throughout your house and become even more dangerous.



This mold species has spores that are easily disseminated, and its growth will be green or blue. Penicillium also produces musty smells and thrives on materials that have come into touch with water. Wallpaper, carpeting, and insulation are all examples of this.

This kind of fungus is an allergenic mold and is known as the principal ingredient utilized to make penicillin. It can grow inside insulation, carpets, and water-damaged furniture and has a white or black surface.

This mold has the potential to cause lung infections as well as allergic responses.

Conidiophores branch off of the main stem of Penicillium molds, which may be seen growing with tell-tale broom-like formations.

Without cultivated testing, Penicillium and Aspergillus molds are difficult to tell apart. As a result, lab reports frequently refer to them as “Penicillium/Aspergillus.”


This velvet-textured fungus thrives on organic trash like old cardboard boxes and scraps of fabric, and can be found on a variety of surfaces.

As its maturity increases, Alternaria may develop brown or black fur and is typically found in bathtubs, beneath leaking sinks, showers, basements, and other damp places inside a home.

Alternaria has over 250 different species. When the weather is dry and windy, this mold variety spreads. Plants and agricultural produce, such as fruits and vegetables, are frequently contaminated with it.

Both indoors and outside, Alternaria may be found. Damp places like over-watered soil, dead plant material, and grass with dew are all examples of where it may be seen. Carpets, wallpaper, window frames, and air conditioning systems can all be contaminated with these spores.

You’ll need a expert air test for mold and surface sampling to identify this kind of mold in your home. Since Alternaria spreads quickly, you’ll have to call in the experts to get rid of it once it’s discovered.


Aureobasidium is a dark brown fungus that may be found on painted walls as well as wallpaper edges. It may also grow on wood and caulk in its early stages, adopting a pink or black tone. It shouldn’t be handled with your bare hands because it can cause infections in the skin, nails, and skin.

Aureobasidium is available in a variety of hues, including dark black to mild cream or pink. This fungus may be seen growing in the tile grout or caulking of bathrooms and kitchens.

It’s critical to keep the home clean in order to prevent Aureobasidium from spreading. To avoid infecting your lungs or interacting with your skin, wear gloves and a mask while cleaning.


Chaetomium has a cotton-like feel and a strong aroma of moisture. This mold type changes from white to grey to brown before finally becoming black in color as it grows in water-damaged buildings.

It’s most typically discovered in leaking roofs, old pipes, and basements, and can pose health risks to individuals with weakened immune systems.

Chaetomium colonies may be discovered in damp and humid environments, such as those produced by water damage to buildings. Drywall, wallpaper, and wood are examples of materials that they grow on.

Allergy and pathogenicity may both occur with Chaetomium mold exposure. Hay fever, asthma, and sinus difficulties are all caused by fungal spores. Mycotoxins, which are thought to be teratogenic or carcinogenic, may also be found in this sort of mold.


Green patches appear on this wool-textured white mold as it spreads quickly in clusters on wet surfaces. Trichoderma thrives on moist textiles like wallpaper and can wreak havoc on a building’s structural stability if it is not properly controlled.


Acremonium is a mold that grows in moist environments and is regularly discovered in ruined structures. It’s easier to detect than other molds because it spreads slowly.

This mold starts off as a little wet substance and eventually becomes powdery. Aconium can be found in a variety of hues, such as grey, orange, white, and even pink.

You may eliminate this mold with a water and bleach solution if you catch it early enough. Open windows to ventilate the area, and wear protective gear to keep yourself safe.

Mold spores may be dispersed in the air when they are sprayed. Sprinkle the solution onto the area and use a soft brush to scrub it clean.


Most people associate Stachybotrys when they hear the phrase “black mold.” Stachybotrys is a fungus that can grow on cardboard, paper, and wood, among other things. It has a wet, slimy feel and might be dark green or black in color.

Stachybotrys can cause severe illness and is often referred to as “black mold” or “toxic mold.” This fungus is distributed in damp places throughout the house and is green-black in color and sticky to the touch.

Black mold is frequently found in bathroom ceilings, wet carpets, laundry spaces, and basements.

Stachybotrys may be harmful and even deadly if you are exposed to it for a long time. Cleveland experienced a 12-case cluster of infant pulmonary hemorrhage in the 1990s, which was linked to black mold.

The mycotoxins produced by Stachybotrys have made people extremely wary since then. If it is discovered in the home, it should be removed immediately by experts.


How Do You Clean Mold?

Mold is more difficult to clean than mildew since it is not a surface fungus. Mold removal can be done using a variety of home remedies, but they aren’t always effective.

You may irritate the mold and make it worse if you do not address it properly. Because you expose yourself to the fungus while handling mold, it is also more dangerous.

As a result, having mold removed by professionals is recommended since it increases your vulnerability to the harmful impacts of mold.

We assist mold-infested homes and businesses with professional mold cleaning solutions provided by ServiceMaster Professional Services.

Our experts will discover and rectify the moisture source, contain the fungus, preventing it from spreading, thoroughly clean all instances of mold in your house, and maybe replace or restore damaged building materials.

Furthermore, because our employees work in a safe and efficient environment, you may have confidence that your property will be restored to a clean, healthy living/workplace.