Mycotoxins in Indoor Environment

Molds or fungi can be found in at least small amounts almost anywhere due to their release of tiny spores. Spores can be hazardous to human health and potentially cause allergic reactions, fungal infection (mycosis) or release mycotoxins. Mycotoxins are secondary metabolites (toxic chemical products) that can be present with the spores, the mycelium of fungi and even the surface where the fungi grow. Not all fungi however produce mycotoxins and, specific environmental conditions are … [Read more...]

Any Input Relative To The Spore Levels Identified?

Question: My daughter and her room-mate have been housed in a room that has an elevated mold count. The outside mold count on the day of the test was 2,600 spores per cubic meter of air while the count in the dorm in the dorm room was 10,300. The preliminary test identified three different types of mold spores with readings elevated above outdoor readings. These spore types and readings were as follows: Penicillium/Aspergillus: Outdoor count: 907 spores/cubic meter of air Dorm room … [Read more...]

Mold And Health

Mold Allergy, Mycotoxins And Mold Infections How Do Moulds Affect Our Health? There are three ways in which mold can affect our health. These include allergy, mycotoxin poisoning and infections. Allergenic Reactions An allergy is an acquired sensitivity to allergenic particles such as mold spores and pollen. Allergy acquired from a single exposure is specific to one or to closely related species. Multiple exposures may result in multiple sensitivities. Alternaria and Cladosporium are … [Read more...]

Chaetomium species as indoor contaminants

Chaetomium species Chaetomium species are found worldwide in soil, dung, or decaying plants. Most species are prolific producers of the enzyme cellulase that breaks down cellulose. Destruction of paper and other materials containing cellulose (including foods, feeds, paper, textile, bird feathers, seeds and military equipment) by species of this mould is well documented. Due to their strong ability to destroy material, Chaetomium species are often used in testing materials for resistance to … [Read more...]

What Are Acceptable Levels Of Mould Spores And What Are The Effects Of Spores On The Human Body?

After analysing air samples for total spore counts, we often get asked whether there are acceptable levels of mould concentrations in air and what effects mould spores have on human health. Unlike many other indoor pollutants, there are currently no set acceptable levels for mould spores. The scientific community including medical doctors is polarized on the effects of mould on human health. However, it is generally accepted that mould can: Elicit allergic reactions to sensitized (or atopic) … [Read more...]