What is a high Stachybotrys count?
100 cfu or less per cubic meter of air indicates low risk. 100 cfu to 1000 cfu per cubic meter of air indicates intermediate risk. 1000 or more cfu per cubic meter of air indicates a high risk. Many people believe that a count of 48 Stachybotrys or Chaetomium spores/m3 of air would be unusually high.
What is an acceptable mold count?
A normal mold spore count in a room is typically 200-500 spores. Anywhere between 1-1500 mold spores in a room is normal and safe as long as mold colonies are not visibly growing and no water damage is present.
What is a high mold count?
Today’s outdoor mold spore counts is over 6000 mold spores per cubic meter air/24 hours which is Very High and may provoke moderate to severe symptoms for those with outdoor mold allergy.
What percentage of mold is toxic?
The Top 10 Mold Statistics and Facts Black mold is sometimes referred to as toxic mold. The percentage of possible IAQ issues in remodeled and new buildings is 30%, according to interesting facts about mold.
Is Penicillium aspergillus black mold?
‘Black’ mold is an umbrella term of not one mold type, but multiple species of mold. The mold’s commonly referred to as ‘black toxic’ mold are mold species of stachybotrys, chaetomium, aspergillus, penicillium, and fusarium.
Is Stachybotrys common?
In most studies, Stachybotrys has had a low prevalence, being present in less than 3% of samples (214, 267). However, some recent work has suggested that it may be more common than was initially thought (144, 405).
What causes mold counts to be high?
Some spores spread in dry, windy weather while others spread with fog or dew when the humidity is high. Mold spores count is highest at night, especially when it’s foggy, damp or rainy. Upsetting these mold spores send them into the air, triggering an allergic reaction in people who have an allergy to mold.
How do you read mold test results?
Levels between 8 and 30 ng/L indicate a low level of mold which, generally, affects people who are sensitive to molds. Levels above 150 ng/L indicate that a high level of active mold growth is present and it is likely that nearly all occupants of the home will be affected.”
How toxic is black mold?
Based on current research, black mold exposure is no more dangerous than any other type of mold exposure. It is impossible to avoid exposure to mold — the spores are almost everywhere around us. In high amounts or in people with allergies, exposure to any mold may cause allergy symptoms.
What is an acceptable level of mold?
less than 10,000 CFUs of mold per gram in a culture sample plate = low mold contamination level. 10,000 to 100,000 CFUs of mold per gram in a culture sample plate = medium mold contamination level. 100,000 to 1,000,000 CFUs of mold per gram in a culture sample plate = medium to heavy mold contamination level.
What are safe mold levels?
Be sure your home has enough ventilation. Use exhaust fans which vent outside your home in the kitchen and bathroom.
What is the acceptable level of mold in buildings?
– 0-50 spores. These trace levels are not an issue. – 50-200 spores. – 200-500 spores. – 500-1500 spores. – 1500-3000 spores. – 3000-10,000 spores. – 10,000-25,000 spores. – 25,000-75,000+ spores.
What is an acceptable level of Penicillium Aspergillus mold?
What is an acceptable level of penicillium aspergillus mold? 200-500 spores – the most common species (Penicillium/Aspergillus, Cladosporium and Curvularia) are typically not an issue and stay within the normal range. 500-1500 spores – sometimes the Penicillium/Aspergillus & Cladosporium levels are in this range and do not require remediation. Also know, is Aspergillus Penicillium mold dangerous?