Top 10 Most Harmful Molds

The Top Ten
1 Stachybotrys

Commonly called as black mold; very known for invading common household walls, typically grows in moist areas. The toxin released from this type is often very toxic to both animals & humans, progressively damaging multiple bodily functions specifically the respiratory system; additionally, this type of mold mostly triggers typical allergy symptoms that could potentially be severe specifically for those whose immune systems are weakened. If exposure prolongs, toxins could potentially damage the brain, causing confusion, depression, insomnia, and other various symptoms ranging to harmful in long, severe conditions that could possibly lead to death ultimately.

2 Chaetomium

Typically grown on humid areas like most molds do; found on the soil and is an airborne type of mold. Chaetomium mold grows fairly quickly especially if germinated into unoccupied areas in the right conditions, possibly doing severe damage to certain structures; the color of the mold type is white green and has a cottony texture. The toxin produced by this mold type is considered dangerous to humans, but specifically to animals; it's possible for this mold type to damage multiple vital functions when consumed, causing a variety of adverse health effects. In humans, this mold causes typical allergic effects consisting of coughing, wheezing and other common symptoms when inhaled; in severe but uncommon cases, it may cause both adverse neurological & internal health problems possibly severe if not treated on time.

3 Aspergillus

While this type of mold is commonly used as medicines, it is a harmful type of mold otherwise. This mold type is airborne and generally found in various objects specifically in fruits & vegetables, and grows on moist environments; in fact, this mold type is among one of the most common molds found practically anywhere around the world, making them unavoidable. Toxins released from this mold could be potentially very toxic to humans varying on severity & length of the exposure, resulting in carcinogenic complications left untreated; in some cases, exposure from this mold invades vital organs leading to death.

4 Alternaria

Very common as other types of molds, hazardous. This mold type is airborne and like most molds, is grown on moist conditions typically on soil, and in trees; often grown outside but is also found inside various structures, in food, and other everyday objects. This mold is classified as an allergen, causing multiple common health effects which progresses into more health problems if exposure time extends.

5 Fusarium

Found in soil, crops and in many other various plants typically on moist conditions, not often found in households unlike most types of molds. Known as a problem in countries especially the US and for doing agricultural damage costing up to million(s), and possibly more than. Fortunately, this type of mold is typically harmless to humans on the vast of species; however, some species of this mold are toxic. Once inhaled, it mostly triggers mild to moderate allergy symptoms; in severe cases, this mold type and its toxins released could potentially impact human health and animals severely causing multiple adverse health effects if infected specifically those who are diagnosed with another condition. In fact, multiple various diseases were spread throughout the world associated with fusarium.

6 Bipolaris

Well recognized type of mold which grows in a rapid rate and further via spores, maturing within less than a week; typically found on varieties of plants & soil, while also having the capability to grow on drier conditions, but could grow on damp environments as well. The color of this mold type consists of mostly brown. This mold is known responsible for the cause of damage in agricultural areas. Inhalation of this mold causes allergy symptoms, and certain health complications, while invading various body functions including the brain.

7 Penicillium

A mold type responsible for the creation of various medicines/antibiotics and in cheese; not only this mold saves people's lives but inflict harm in humans as well. Found globally in various rotting food, grains, paint wallpapers, air, and almost everywhere in the right and moist environments. Classified as an allergen causing typical allergy & asthma effects for certain people with elevated sensitivity to molds, and often hazardous when unintentionally consumed typically in moldy food; inhalation of spores of this mold type results in shortness of breath, irritated nose, sneezing, and coughing. Some species of the mold may produce toxins causing adverse negative effects potentially threatening. Indeed a useful type of mold, but also a harmful one.

8 Trichoderma

Most commonly found in wood and other cellulose materials, and are very common for infecting houses and other parts of households. The color of the mold consists of white, mostly. Human contact with this mold can cause negative health effects, which are similar to those of black mold; species of this mold are as very toxic in comparison to black mold and fusarium; also one of the most difficult molds to remove as removal of molds should be performed with proper, consistent care.

9 Ulocladium

Potentially hazardous mold that grows fairly quicker than some molds in comparison, and is typically brown in color, but could be black; growing on very wet, humid areas, typically found in soil and in wood but also lingers at the atmosphere, usually cottony; if exposed, this mold could cause adverse allergic reactions consisting of coughing, asthma, wheezing, sneezing, and multiple other symptoms ranging from moderate to severe. This mold could potentially cause death typically for those who have other health conditions. In wooden households and other buildings, damage is done severely if not immediately disinfected.

10 Geotrichum

This is considered as a very common mold type also found globally in water, soil, dairy, and at the atmosphere; also found in our human bodies typically in flora microbiomes. The color of the mold consists of white, and growth occurs at a fast rate, further accelerates in moist areas, eventually producing spores that transfers & germinates into further multiple areas if not controlled, which is considered very hazardous to structures specifically made of wood as it grows. Spores of this mold are not visible, and could reside in your home in a relatively long period of time doing consistent damage, making them extremely difficult to take control of. Inhalation of the mold results in typically experiencing common allergy symptoms in most individuals, and like other molds, could result in critical health effects for those whose either immune systems are weakened or suffering from a severe health condition.

The Contenders
11 Cladosporium
BAdd New Item