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What Is Black Mold?

What is Black Mold?

First things First – All Black Molds are Not Toxic. There are many thousands of different species of this fungi worldwide and at least a thousand different species living and found in the United States, alone.

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What Is Toxic Black Mold?

However, a very large percentage of these molds are harmless to humans but also look so very much alike.

Therefore, it is very important to properly identify what Black Mold Is and Is Not before committing to your mold remediation plan.

Determining how to best trouble-shoot your given situation can be overwhelming and a bit scary if you are not sure of what you are up against. Especially, if you can smell the fungi and not see it.

What Does Mold Look Like?

Molds come in all sizes, shapes and arange of colors from black to orange, blue to white, and yellow to green.


Molds can also be distinctive by their texture and profiles – some are flat looking while others appear to have hairs or a bumpy appearance to them.

Moreover, mold is made up of tiny microscopic organisms that are found everywhere, indoors and out.

And, mold spores are spread throughout the air when blown or disturbed from the surface in any way from which they have attached themselves.

What Does Black Mold Look Like?

Black Mold, or Stachybotrys Atra (also known as Stachybotrys chartarum) is a species of a Toxic Mold that you may have heard about most often.

What Does Black Mold Look Like?

It can be dangerous and threaten the health and welfare of pets as well as anyone who comes into contact with the mycotoxins that several of these species produce.

This fungus requires and thrives off moisture to survive. It will often appear as slimy and features a dark greenish-black(sometimes gray) coloration to it that is not often found as with other species and groups of this fungi.

And, because of its moisture requirements, black mold spores will be dampened downward and not easily contaminate the air around it as readily as other species spores might.

Does Black Mold Have A Smell?

Yes, Black Mold has a distinctive odor that favors a mildew and very musty odor. You might even discover a moisture issue within the general suspect area.

Sometimes, when found in the HVAC ducts, the odor can only be smelled when the unit is pushing air through the vent systems in the home.

Black Mold Symptoms

If the mycotoxins that are produced by toxic black mold are ingested or inhaled, you could expect to experience any one or combination of the following symptoms depending on the amount or duration of the exposure.

Black Mold Symptoms

The particular strain of the species of toxic mold will be a factor as well. These symptoms could be amplified for infants, the elderly and if one is already suffering from any upper respiratory illness.

  • Respiratory Distress and/or Breathing Difficulties
  • Unrestrained Coughing and/or Sneezing (sometimes coughing up blood)
  • Irritation to the Mucous Membranes
  • Kidney or Bladder Discomfort(s)
  • Impaired Concentration Levels (sometimes memory loss)
  • Excessive Fatigue, Headaches or Tiredness
  • Nausea, Vomiting and/or Diarrhea
  • Immune System Suppression
  • Redness and Itching to Eyes, Mouth and Nose

Toxic Black Mold can be deadly if it is allowed to grow unrestrained. And, as unappealing as this fowl smelling fungi is, its this distinctive odor that can lead you to its location and taking action to get it removed from your home as soon as possible.

Where Does Black Mold Grow?

Just about anywhere really. Outside, toxic mold will grow in the soil which is assisting mother natures process of further breaking down organic substances like dead leaves and tree limbs.

Inside our homes and businesses, this toxic fungi thrives in warm and moist areas that are low in nitrogen and high in cellulose.

Black Mold Symptoms

This would include carpet, dry-wall, drop-down ceiling tiles and wood paneling. When these items get wet and remain in this condition for any period of time, then the moisture weakened areas are primed for mold growth.

There are many other areas of your home where mold will continue to grow and go unseen – until you dig a bit.

Remember the books that were put in away in a box. Maybe, left in an outside garage for a while. And, then later – after unpacking.., ugh! Mold everywhere.

All is not lost. Some of those books – especially those prized and perhaps antique leather bound books – can perhaps be saved.

I’ve written here on how you may be able to save those mold-ridden books from the dumpster. Give it a read and good luck!

Mold growth thrives in front load washers and other washing machines – especially the seals and water lines. Mildew can also grow out of control in refrigerators and dishwashers.

Many times unseen for weeks or months. Ever wonder why the recently “cleaned” dishes OR, freshly “washed” clothes have black specs or stains on them?

Worse yet, are the black spots floating in that newly ice filled drink from the fridge. Gross!

Water lines to our refrigerator ice machines, dishwasher, and front load washers are commonly over-looked for mold and mildew growth.

You can read more here on how to eliminate the fungus from your washing machine.

If it’s your dishwasher that’s giving you a problem with mold growth, here is an article that I’ve written that may help you out.

Getting rid of mildew and mold growth in the fridge can be expensive, It all really depends on how much food has to be discarded.

I’ve got more on keeping your fridge free of mold here. Hopefully, you’ve got a regularly scheduled maintenance and cleaning plan to keep you and all of yours healthy!

One overlooked area that mold can take hold of is the trunk of our cars. We are on our way to work and can smell the funk. But, cannot always locate the source of the mildew smell.

Many times, mold and mildew will take hold in the carpet of our automobiles via a broken seal in the trunk. And, can also take hold when a seal is cracked in a door frame or in the sun-roof.

It’s not healthy to inhale these mold spores while on our commutes. Gosh knows we have to breathe too many pollutants and chemicals in our work places as it is.

If you have a mildew smell in your car, I’ve written an article here that may just help you to eliminate that smell and breathe easier on your next drive!

Often enough, you may not be able to see any mold even after experiencing strong odor indicators that mold is indeed present.

As a general rule, any mold growth that is found inside of the home or business should be safely and quickly removed. Any moisture issues should also be corrected quickly.

Before Jumping Right IN – Be very careful before tearing down the wall-paper from the bathroom wall – OR, removing a caulk line from the shower wall and tub.

If there is indeed black mold behind these areas, then you need to capture or contain any mold spores before disturbing the area where the mold is present.

black mold under microscope

It is important not to launch the mold spores off into your homes ventilation and surrounding airspace.

This is especially true for infants, pregnant women, the elderly or anyone with a depressed immune system living in the contaminated area.

And, lets not forget about our “Furry” members of the family as well!

For personal safety, it will be beneficial to invest a few dollars into some basic personal protection equipment before beginning your mold restoration game-plan.

Your Basic PPE (personal protection equipment) kit should include a minimum of safety goggles, protective coveralls with a drawstring hood, safety gloves, boots and a N-95 respirator (can be found at most local hardware stores).

Molds That Make You Sick

When speaking to black mold, there is no single one group or species of mold that defines the phrase “black or toxic mold”. Instead, several classes of molds are more commonly referred to as toxic molds and here are a few of them:

  • Stachybotrys chartarum (also known as Stachybotrys atra, Stachybotrys alternans or Stilbospora chartarum) * This mold, aka “black mold” to the general public lives its life surviving off of dead materials that are rich in cellulose.
  • A few examples would include cereal grains, wood-pulp, paper and hay or straw; (Stachybotryotoxicosis is a disorder that has affected farm hands that have handled contaminated straw).
  • This species of mold is more commonly found in soil and plant debris. However, when found in your home, school or business; it is likely that there is or has been a water or moisture problem in the area.
  • Aspergillus niger * Aspergillus niger can be found in environments where there is very little nutritional value for it to grow. However, it is abundant throughout our environment among the many species of molds.
  • And, it is often found in homes where the walls are damp. It is black in color on its surface and generally white or yellow underneath.
  • This particular species is also dangerous to humans when its spores settle into the lungs and have been credited with hearing issues and/or the loss of hearing.
  • Memnoniella echinata : also know as Stachybotrys echinata * This particular species has been often found on cottons, linens, wool and canvas items. This mold does produce many of the same toxins produced by Stachybotrys chartarum and is therefore considered to be potentially dangerous to humans and indoor air quality.

Some of the more problematic groups and species of indoor molds are: Aspergillus, Chaetomium, Penicillium, Fusarium, Cladosporium, Mucor and Stachybotrys.

There are certainly others and a really good site to visit if you need specifics on different mold groups and the relevant species nested within each group is Moldbacteria

I’ve Got Mold In My Home

It is important to note that molds are common in our homes, schools, and businesses. Each individual can and will react differently to allergens in the air that are associated with mold spores.

It is when moisture or humidity is added to an environment in which mold spores are present, in which they will thrive and colonization begins.


Mold plays a vital part in assisting Mother Nature in the breakdown of cellulose materials such as dead leaves, tree branches, fallen trees and other organic matter.

However, it will not simply disappear on its own unless it is properly removed and the conditions surrounding it have been changed that are not conducive to its growth.

For ourselves and loved ones, any suspect mold issues may need to be addressed as quickly as possible. We hope that you enjoy this site and what it has to offer on Removing Black Mold.

In future posts, we will be exploring the facts and/or myths surrounding black mold and how it affects all of us in our homes – our place of business and in our health.



5 thoughts on “What is Black Mold?”

  1. Molds are part of the natural environment. It may begin growing indoors when mold spores land on surfaces that are wet. There are many types of mold, and none of them will grow without water or moisture. It is the #1 cause of allergy symptoms which could lead to serious health concerns; respiratory illnesses or even death. Proper inspection, testing and removal are essential to ensure a healthier, happier existence for you and your family.

    A mold inspection is when a person looks for mold growth in a building. It is important to have inspection in your home to protect you and your family from the toxic diseases it will give. It is the most important first step in identifying a possible microbial contamination problem. After that you might feel mold testing is warranted if you couldn’t find any mold.

  2. Wesley Sallinger

    You Bet and Thank-you! I am pleased that you have found something here of value. And, can be readily used in everyday mold prevention practice.

  3. A comprehensive outline of information here! It is a little scary how many people are not educated about this and end up living with and breathing these toxic spores. Your site is a fantastic resource! Thanks for posting!

  4. Wesley Sallinger

    Yes, there are many types of molds commonly found inside of homes and buildings. And, they can be found anywhere that there is high humidity levels or excessive moisture present.

    Basements, HVAC (heating-cooling) systems, attics and bathrooms are just a few areas where this fungi can be found feeding and getting its energy from organic matter.

    Some common health concerns associated with black mold could include hay fever-like symptoms for some. Others could experience more advanced upper respiratory challenges (asthma, ear infections, chronic fatigue and even kidney failure in extreme mold exposure cases). The very young and the elderly with weakened or undeveloped immune systems could also be at risk when exposed to higher levels of mold spores.

    It is not always a good idea to use a fast drying fan to attempt drying out a mold contaminated area (such as carpet, drywall and so on). It is best to remove all contaminated items first (to include cutting out affected drywall) and then dispose of properly.

    Clean affected areas and sanitize first before replacing damaged carpet padding or drywall. If your mold remediation project is larger than 9 or 10 square feet, then negative air-pressure may need to be applied to the contaminated area.

    Negative Pressure is used by professionals to contain bacteria and mold spores from being released into the air during mold restoration. Keeping You & Yours Safe!

  5. What is black mold

    Black mold is a special type of molds that is generally found in house and offices where moisture are big problem. Mold occurs only in moisture area. so it is essential to keep dry the surface as long as possible. For drying surface one should use fast drying fan or just call in professionals if he/she is unable to rectify them.

    Source: Black Mold removal tips‎

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