Hi Matty - i think you mean, if you use a swab to collect a sample (swabbing a dirty/contaminated surface) and transfer that to the media (i.e., agar) in the plate, and then incubate. The result should represent what was taken from the surface. If spores were there, you might get some to grow. That is not very reliable - many confounding factors (variables) that can reduce both precision and accuracy. I would not use it unless for very specific, limited, purpose. One must know all the confounders before collecting and interpreting this type of sample. Most people do not consider these. They just report "a mold spore"! That is not meaningful.
Thank you! We used DIY plates and it gave a snapshot of what we thought was in different locations but I understand the accuracy is in question. We have 4 floors and the quantity and rates of growth decreased with each floor which makes sense as the humidity issue was mostly on the top floors. The types of air samples were consistent throughout. Swab not so much. Can you tell me what testing should be used for best results? We have already spent a few thousand dollars and don’t trust the company or results due to methods and locations. Appreciate any insight.
Hi, Scott. I am interested in consulting with you, however, when I click the link on your site to do so, I am met with a message stating "The page you were looking for couldn't be found." How do I contact you for a possible consultation?
Thanks Scott! Good info. More people need to understand the science for sure! I need to get a copy of that book- thanks for sharing it. I’m curious if it addresses spore fragments and if and how to sample for them? Thanks and keep up the informative posts!
There is never a reason to sample for fragments. Not from point of view of the patient, occupant, or owner.
BUT once in a while there might be use for sampling for particulates on surfaces, including mold growth fragments. This can then be compared to dust on surfaces after a cleaning is conducted to confirm that the surface is cleaner. BUT the visual proof is just as valid - and much cheaper!
"no visible dirt, dust, or debris, provable with a 'white glove' test"
What about swabs that are then placed on the plate?
Hi Matty - i think you mean, if you use a swab to collect a sample (swabbing a dirty/contaminated surface) and transfer that to the media (i.e., agar) in the plate, and then incubate. The result should represent what was taken from the surface. If spores were there, you might get some to grow. That is not very reliable - many confounding factors (variables) that can reduce both precision and accuracy. I would not use it unless for very specific, limited, purpose. One must know all the confounders before collecting and interpreting this type of sample. Most people do not consider these. They just report "a mold spore"! That is not meaningful.
Thank you! We used DIY plates and it gave a snapshot of what we thought was in different locations but I understand the accuracy is in question. We have 4 floors and the quantity and rates of growth decreased with each floor which makes sense as the humidity issue was mostly on the top floors. The types of air samples were consistent throughout. Swab not so much. Can you tell me what testing should be used for best results? We have already spent a few thousand dollars and don’t trust the company or results due to methods and locations. Appreciate any insight.
Hi, Scott. I am interested in consulting with you, however, when I click the link on your site to do so, I am met with a message stating "The page you were looking for couldn't be found." How do I contact you for a possible consultation?
Lori, I can be reached via my company webpage is this page link isnt getting to me... armourappliedscience.com/contact
Look forward to hearing from you!
Thanks Scott! Good info. More people need to understand the science for sure! I need to get a copy of that book- thanks for sharing it. I’m curious if it addresses spore fragments and if and how to sample for them? Thanks and keep up the informative posts!
There is never a reason to sample for fragments. Not from point of view of the patient, occupant, or owner.
BUT once in a while there might be use for sampling for particulates on surfaces, including mold growth fragments. This can then be compared to dust on surfaces after a cleaning is conducted to confirm that the surface is cleaner. BUT the visual proof is just as valid - and much cheaper!
"no visible dirt, dust, or debris, provable with a 'white glove' test"