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Fire & Water - Cleanup & Restoration

Evaluating Mold: Air Sample Testing

11/3/2018 (Permalink)

All buildings contain mold spores since they a natural part of the environment.  An elevated mold count especially one that contains spores from varieties of mold that are commonly found when water damage is involved, such as stachybotrys chartarum, can indicate that there may be a structural moisture problem.     

In the insurance claim process, mold testing in is generally utilized after the mold has been remediated to confirm that the mold spore count is at or below the count found outside the building. The test is conducted while the remediated area is contained in order to confirm the success of the cleaning process. 

Determination of airborne spore counts is accomplished by way of an air sample, in which a specialized pump with a known flow rate is operated for a known period of time. Conducive to scientific methodology, air samples should be drawn from the affected area, a control area, and the exterior.

The air sampler pump draws in air and deposits microscopic airborne particles on a culture medium. The medium is cultured in a laboratory and the fungal genus and species are determined by visual microscopic observation. Laboratory results also quantify fungal growth by way of a spore count for comparison among samples. The pump operation time was recorded and when multiplied by the operation time results in a specific volume of air obtained. Although a small volume of air is actually analyzed, common laboratory reporting techniques extrapolate the spore count data to equate the amount of spores that would be present in a cubic meter of air.


If you have questions or need further information about the mold testing process, contact SERVPRO of Canton at 800-648-1212. 

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