Stachybotrys atra

Stachybotrys atra Stachybotrys atra, also known as Stachybotrys chartarum, is a species of mold that is commonly referred to as "black mold" due to its dark greenish-black appearance. It is a fungus that thrives in damp, humid environments and is often found in buildings with water damage. This mold is of particular concern due to its potential health effects on humans.

Characteristics

Stachybotrys atra is a filamentous fungus that belongs to the family Stachybotryaceae. It produces conidia in slimy heads rather than in dry chains, which is a distinguishing feature. The mold grows on materials with a high cellulose content, such as paper, wood, and gypsum board, especially when these materials are wet or damp for prolonged periods.

Habitat

Stachybotrys atra is typically found in environments with high moisture levels. It is commonly associated with water-damaged buildings, where it can grow on building materials like drywall, ceiling tiles, and wallpaper. The presence of this mold is often an indicator of chronic moisture problems, such as leaks or flooding.

Health Effects

Exposure to Stachybotrys atra can lead to a variety of health issues, particularly in individuals with respiratory conditions or weakened immune systems. Symptoms of exposure may include:

• Respiratory problems, such as coughing and wheezing
• Nasal congestion and sinusitis
• Eye irritation
• Skin rashes
• Headaches

In severe cases, prolonged exposure to the mycotoxins produced by Stachybotrys atra can lead to more serious health effects, although this is rare.

Diagnosis and Detection

Diagnosing the presence of Stachybotrys atra in a building involves visual inspection and sampling. Professionals may collect samples of the mold and analyze them in a laboratory to confirm the species. It is important to identify the source of moisture and address it to prevent further mold growth.

Prevention and Remediation

Preventing the growth of Stachybotrys atra involves controlling moisture levels in buildings. This can be achieved by:

• Fixing leaks and water damage promptly
• Ensuring proper ventilation in areas prone to moisture, such as bathrooms and kitchens
• Using dehumidifiers in damp areas

Remediation of Stachybotrys atra requires careful handling to avoid spreading spores. Professional mold remediation services are recommended to safely remove the mold and restore the affected area.

See Also

• Mold (fungus)
• Mycotoxin
• Indoor air quality
• [1] Centers for Disease Control and Prevention. "Facts about Stachybotrys chartarum and Other Molds."
• [2] Environmental Protection Agency. "Mold Remediation in Schools and Commercial Buildings."

NIH genetic and rare disease info

• NIH info on Stachybotrys atra

Stachybotrys atra is a rare disease.