Re: Canada Posits Mold Guidelines

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MBobMean,

That is a good doc! I would be willing to bet money though,
that the following sentence will be misapplied within the
courtroom:

"Further, results from tests for the presence of fungi in air
cannot be used to assess risks to the health of building
occupants."

Sharon

On 1/25/07, MBobMean wrote:
> On 1/25/07, MBobMean wrote:
>
> FYI, look about 1/4 to 1/3 down on the screen:
>
> ANNEX
>
> RESIDENTIAL INDOOR AIR QUALITY GUIDELINE
>
> MOULDS
>
> Physical and chemical properties
>
> The word "mould" is a common term referring to fungi that
> can grow on building materials in homes or other buildings.
> Mould growth can influence air quality because both spores
> and mycelial fragments are dispersed into the air and can be
> inhaled. Their penetration into the bronchial tree depends
> on their size. The smaller particles penetrate deeper into
> the lungs.
>
> Three features of mould biochemistry are of special interest
> in terms of human health:
>
> Mould cell walls contain (1->3)-ß-D-glucan, a compound with
> inflammatory properties;
> Mould spores and mycelial fragments contain allergens; and
> The spores of some species contain low molecular weight
> chemicals that are cytotoxic or have other toxic properties
> (e.g. satratoxins and atranones produced by Stachybotrys
> chartarum).
>
>