Following employee complaints with headaches, respiratory troubles, a French southwest company requested to the RNSA Laboratoire an audit about the air quality in their offices. Previous controls with traditional method (impaction) showed nothing. Water infiltrations occurred in the premises in the previous weeks has been reported too. Suspicious contamination by Stachybotrys chartarum has been investigated.
Sampling with the Coriolis®μ have been carried out in many offices or rooms in January 2009. Others campaigns have been done 3 and 6 months after recommendations and rooms decontamination to be sure it had been efficient.
Coriolis®μ: high concentration of moulds as Alternaria, Cladosporium and Stachybotrys in 3 offices and in their specific roof spaces.
“Scotch test”: Only Stachybotrys presence in the most contaminated roof space.
=>The confirmation of the presence of Stachybotrys chartarum is very important because this mold is notorious as a mycotoxin producer that can cause human mycotoxicosis and is one of the causes of the “sick building syndrome”. It is associated with adverse human health effects (nausea, nose bleeds, dizziness, respiratory troubles..) from which employees complained.