What concentrations of toxins in air can give health effects ?

[Guest guest]

Found this study:

Detection of satratoxin g and h in indoor air from a water-damaged

building.

by: C Gottschalk, J Bauer, K Meyer

Mycopathologia, Vol. 166, No. 2. (August 2008), pp. 103-107.

on http://www.citeulike.org/group/6193/library

Lets forget the mycotoxins for a while and pretend it is

another " toxin " that can be found in air (take your pick among one of

the nastiest you can think of).

Is a level of aprox. 0,7 ng/m3 of " xxxx " in air a concentration that,

in other settings, is considered by toxicologists or others to be

able to cause health effects ?

Anyone have examples ?

One nanogram is not a lot !

I am just curious ! (and too lazy to do my own search I guess)

MVH

Ole Carlson

Norway

Detection of satratoxin g and h in indoor air from a water-damaged

building.

by: C Gottschalk, J Bauer, K Meyer

Mycopathologia, Vol. 166, No. 2. (August 2008), pp. 103-107.

Abstract

The occurrence of Stachybotrys chartarum in indoor environments has

been linked to adverse health effects as well as few cases of

pulmonary haemorrhages in humans. Although the highly toxic secondary

metabolites of this fungus, like satratoxin G and H, were frequently

claimed with outbreaks of such diseases, these toxins have hardly

been identified in the air of naturally contaminated indoor

environments. Herein, a case of a LC-MS/MS-confirmed occurrence of

airborne S. chartarum-toxins in a water-damaged dwelling is reported.

Satratoxin G (0.25 ng/m(3)) and satratoxin H (0.43 ng/m(3)) were

detected. This provides further evidence that Stachybotrys-toxins can

be transferred from mouldy indoor materials into air, which could be

a factor in the aetiology of health symptoms related to the sick

building syndrome.