High spore count but few sign of mold
Hi, I have a 70 yr old farmhouse located in SW Coastal British Columbia. The house was tested for mold 2 yrs ago in November. I was renting it out with the tenants fully aware of the test results, however, they have just moved out and I am now hoping to solve the ‘problem’. There were 3 air samples taken from the living areas and they each came back showing between 12000 and 18000 Aspergillus/Penicillium ct/m3. Despite such a high spore count there is very little visible signs of mold and there is no musty odour in the house, except a slight smell in the laundry room, which is in an uninsulated cold room at the back of the house. The bedroom nearest the laundry had the lowest reading at just over 12k. I have opened up small sections of the walls in several areas and have not found any mold. Before I start ripping out walls, is it likely that a count this high could be hidden? Shouldn’t I be able to at least smell it? Or could there be a problem with the accuracy of the air sampling or lab reading? One issue that I have with the testing is that there was no outdoor sample taken due to high winds. The house is surrounded by rainforest on three sides, is across the road from a hayfield and has compost piles, and chickens on the property. Is it possible that these sources could produce test results this high in the house?
Any thoughts are appreciated
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