Re: Mycotoxin in Building Dust

[Guest guest]

How does one get to the point of testing if OSHA protects your

employer and Co-Workers are to afraid to say anything?

>

>

> All:

>

> You should find this interesting. I await furhter confirmation. I

have

> not seen the actual paper.

>

> May

> May Indoor Air Investigations

> www.mayindoorair.com

> www.myhouseiskillingme.com

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>

> April 9, 2008

>

> Trichothecene mycotoxins in the dust of ventilation systems in

office

> buildings

> by Pub Med - Smoragiewicz W, Cossette B, Boutard A, Krzystyniak K.

>

>

>

> Département des Sciences Biologiques, Université du Québec à

Montréal , Canada

> Analysis of trichothecene mycotoxins in dust samples from

ventilation

> systems of office buildings was applied as a rapid and inexpensive

> method for the detection of mycotoxins.

>

> Dust samples from three different office spaces of the Montreal

urban

> area, reportedly affected by the " sick buildings syndrome " , were

> analysed by thin-layer chromatography (TLC). Positive colour

reaction

> on TLC plates with 4-(p-nitrobenzyl) pyridine, specific for the

> 12,13-epoxy group in the trichothecene nucleus, was obtained for

the

> extracts of 0.5- to 50-g dust samples. The dust samples contained

at

> least four trichothecenes: T-2 toxin, diacetoxyscirpenol, roridine

A

> and T-2 tetraol. The results were confirmed by high-performance

liquid

> chromatography analysis. Screening of dust samples from air

> ventilation systems of reportedly affected buildings provided

direct

> evidence of trichothecene mycotoxins, with the de tection limit

> estimated as 0.4-4 ng/mg dust. Thus, the dust sample analysis is

> suggested as a rapid technique for detecting the presence of

> mycotoxins in the dust of ventilation systems.

> PMID: 8253508 [PubMed - indexed for MEDLINE]

>