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You are here: Home / Archives for eurotium

Moulds commonly found in carpet and mattress dust

Jackson Kung'u

A number of moulds are frequently found in carpet and mattress dust. Eurotium repens is the most frequently detected mould in mattress dust. Others include Aureobasidium pullulans, Alternaria alternata, Penicillium chrysogenum, Aspergillus penicilloides and Aspergillus restrictus.

More than 100 species of moulds have been recorded from carpet dust. As with mattress dust, the most frequently isolated mould in carpet dust is Eurotium repens. The others are Penicillium chrysogenum, Alternaria alternata, Aureobasidium pullulans and Phoma herbarum.

Concentrations of these moulds in carpet and mattress dust can be as high as 70 million colony forming units per gram of dust. Such high concentrations of moulds are likely to cause respiratory allergy or irritating symptoms. Therefore, it is import to regularly HEPA vacuum the carpets, mattresses and upholstered furniture to reduce the dust and spore concentration. If people are suffering from reoccurring respiratory allergy or irritating symptoms in a building where there is no visible mould, it is suggested that dust be tested for the types and concentrations of mould present.

Filed Under: Fungi, Microbial Sampling Tagged With: allergy, Alternaria, Aureobasidium, carpet, dust, eurotium, mould, Penicillium chrysogenum, Phoma herbarum

Types Of Mold

Jackson Kung'u

Many people often ask what are the types of mold commonly found indoors. Generally the prevailing conditions determine the types of mold prevalent in a given environment. A highly humid environment is likely to be dominated by those molds that require a lot of water such Aspergillus fumigatus, Chaetomium globosum, Stachybotrys chartarum, Ulocladium chartarum, Fusarium solani, Trichoderma sp, while a relatively dry environment may be dominated by those molds that require less moisture to grow such as Aspergillus versicolor, Eurotium spp, and Wallemia sebi. For a more detailed discussion on the types of mold commonly found indoors and their hazard classes, visit the website http://www.mouldfacts.ca/mouldtypes.html.

If you have a question concerning indoor mold or bacteria, give us a call at (905)290-9101.

Filed Under: Fungi Tagged With: Aspergillus, chaetomium, eurotium, Fusarium, stachybotrys chartarum, Trichoderma sp, types of mold, ulocladium chartarum, Wallemia sebi

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Salmonella food poisoning and symptoms

Salmonella food poisoning has been a growing concern in recent news. It has frequently lead to recalls of beef, salads and organic products and, even peanut butter products. Salmonella food poisoning occurs when one eats raw or undercooked foods such meat, poultry, eggs or egg products. Properly cooked food can get contaminated with Salmonella if […]

Legionella pneumophila – Guidelines for Laboratory Interpretation

Legionella pneumophila is a Gram negative, aerobic bacteria that is characterized as an opportunistic pathogen. It is the cause of Legionnaires’ Disease, a severe form of pneumonia and, it is the cause of Pontiac fever, a non-pneumonic form of L. pneumophila infection. Legionella spp.’s mode of transmission is through aerosols or aspiration of contaminated water. The Public Health […]

The Indoor Mold Is An Early Warning Device

The mold (or mould, in the Queen’s English) has been the victim of a bad press. Mention the word and it conjures up an image of something rotting or in the process of decomposition. And yet, were it not for the mold that inspired the discovery of penicillin millions of lives would have been lost. […]

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