Re: New File:Biomechanics of Conidial Dispersal....

[Guest guest]

Thanks Joe and Love, it's nice to go back and read the full text on

these when they become available.

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> Thanks to " LiveSimply " bringing this newly available complete free

science paper to my attention, I have, at her request, uploaded the

PDF file to our " Sickbuildings " files page.

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> The paper is titled: " Biomechanics of Conidial Dispersal in the

Toxic Mold Stachybotrys Chartarum " .

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> It appears, on the Sickbuildings file page

titled: " Mold_Biomechanics of Conidial Dispersal " with the upload

date of July 31, 2008.

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> The free full-text article has just become available in the

journal " Fungal Genetics and Biology " , where the full text can be

viewed by clicking on the " TinyURL " link at the end of this posting.

The PDF file can only be seen, for free, and downloaded and printed,

from the Sickbuildings file page.

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> " LiveSimply " pointed out, to me, that the paper explains " the

reason you can have MAJOR stachy infestation and STILL have it not

show up on spore tests " .

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> I tend to look on the bright side of things, and I was encouraged 

by the author's use of the phrase: " putative mold-related illnesses " .

When I looked up the definition of " putative " , I

found " Supposed " , " Reputed " , and " COMMONLY ACCEPTED " . I consider that

to be progress, in how our medical condition is viewed by the

scientific community. Read the article, and judge for yourself.

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> Joe 

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> http://tinyurl.com/62klct

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[Guest guest]

well crap,lol's live, that was a type but I luvs ya anyway.

[Guest guest]

This paper is good for us, bad for the naysayers. It's what we have been

saying all along. You can do the math on airborne mycotoxins from Stachy, but

you can't conclude based solely on this math that we are not sick from

mycotoxins (and/or company) when they are atypically present in water damaged

buildings. Too many variables not able to be answered by this method.

" difficult

to quantify..where multiple discrete colonies " " significance of this

level..remains uncertain " " ejection of microparticulates..may

boost..concentration "

" putative mold-related illness may have been associated with HVAC systems

that pulled air from contaminated basements "

The conclusion is: Don't use high speed fans when mold is present. Makes

sense to me!!!

Sharon K

" We assume that the quantity of airborne mycotoxins increases in proportion

to the area of mold growth in a particular indoor space, but it is difficult

to quantify the extent of mold proliferation in situations where multiple

discrete colonies are distributed over a wide area. Despite these

uncertainties,

the suggestion by Burge (1996) -- and supported by Kelman et al. (2004) --

that a person living in a highly contaminated environment could accumulate no

more than a few nanograms of toxin in 24 h seems very reasonable. The

significance of this level of mycotoxin exposure remains uncertain. (which is a

far

cry from " highly unlikely at best, even among the most hypothetically

vulnerable of subpopulations and does not take into account dermal or ingestion

routes of exposure occurring simultaneously...nor does it address what happens

when one is exposed to multiple myco- and other toxins simultaneously)

The ejection of microparticulates from toxigenic colonies may boost the

concentration of airborne mycotoxins beyond estimates based on conidial release

(Brasel et al., 2005).

The present study shows that S. chartarum is poorly adapted for dispersal by

airspeeds that

prevail in the indoor environment. Even in homes that become heavily

contaminated with S.

chartarum, only modest numbers of conidia will become airborne unless

contaminated surfaces

are disturbed by high airspeeds or vibration. With this in mind, it is

interesting that cases of

putative mold-related illness may have been associated with HVAC systems

that pulled air

from contaminated basements, and with the use of electric fans that generate

higher airspeeds

than those in the rest of the living space (Montaña et al., 1997;Etzel et

al., 1998). This issue

should be considered when evaluating the use of high-capacity fans to dry

homes after flooding.

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[Guest guest]

This is the question that bothers me:

The mycotoxins build up slowly, and last a LONG time. Where do they GO?