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Moulds as Indicators of Dampness in A Building

Some moulds and bacteria when found growing in indoor environment are indicative of the level of dampness in the building or potential health hazards.

Indicators of severe moisture damage in a building
Aspergillus fumigatus, Trichoderma spp, Exophiala, Stachybotrys spp, Phialophora spp, Fusarium spp, Ulocladium spp, yeasts such as Rhodotorula, Actinomycetes and Gram-negative bacteria and Phoma spp.

Indicators of moderate damp building environment
Aspergillus versicolor, Aspergillus sydowii, Emericella nidulans, and Cladosporium spp

Indicators of relatively dry building environment
Aspergillus versicolor, Eurotium spp, Wallemia sebi, Penicillium spp such as Penicillium chrysogenum and Penicillium aurantiogriseum.

Do you have a mould question? Contact Jackson at (905)290-9101

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. […]