Re:[sickbldngs] Mycotoxin in Carpet Dust Correction/Addition

[Guest guest]

List members:

Concerning the abstract "Occurrence of Toxigenic

Aspergillus versicolor Isolates and Sterigmatocystin in Carpet Dust from

Damp Indoor Environments" <http://aem.asm.org/cgi/content/abstract/68/8/3886>

........... in my post, I wrote that" the authors found sterigmatocystin

(mycotoxin) in carpet dust in very low concentrations; at 3 nanograms per

gram of carpet dust, this represents about 10 parts per trillion (ppt)."

This number should have been "approximately 3 parts per billion

(ppb)," not ppt.

In response to this post, I received a note

concerning some dust samples from moldy carpet in a water damaged

building in the South. Researchers found the mycotoxin ochratoxin-A (from

Aspergillus ochraceus) at a concentrations up to 20 ppb. Some samples

also contained trace amounts of the carcinogen aflatoxin (from Aspergillus

flavus).

Sorry about the error; it looks as though it's

time to do some more mycotoxin testing of dust from moldy carpeting!

May

<www.MyHouseIsKillingMe.com>

<www.jmhi.com>