At a basic level of comparison, when testing for mold, a sample of background air (sometimes from outside) can also be obtained. The outer sample is the comparison sample, since mold spores grow abundantly outside. You can also try other rooms in the building where there are no complaints as a general basis for indoor conditions. Airborne mold spores should, in most cases, be higher outside than the same mold spores inside the building when tested.
If you have a very high spore outside, expect to find it indoors, but at a lower concentration. The caveat is when and where the outdoor sample is purchased, both for indoor and outdoor sample locations. The interior, the condition of the room, possessions and other factors that may influence the results of the sample are factors to consider. The location of the sample outside, the outdoor conditions, including the climate and the time of year, are factors that influence the equation relating to the routes of exposure to the building from the sampling point, etc.
Air sampling is considered to be the highest level of scientific confirmation, since it not only confirms the presence of spores and types of mold, but also indicates the quantified amount of mold spores in the air. Laboratory tests offer a clear advantage over self-made mold tests, as they provide the concentration of mold in addition to the type. If your test determines that there are mold spores in your home, you can send the testing materials to a laboratory that will perform another test to determine what type of mold is present. Swabs, tapes, and bulk samples can identify types of mold, but do not indicate the size of mold contamination because localized testing is performed.
All mold samples may be biased and it is the responsibility of the mold inspector to consider the room being sampled and how the content or condition of the room could affect the sample. If no water intrusion or mold problem was found, these levels can be reached by hiding behind a wall. Newly flipped homes often have hidden mold. The health effects of black mold not only depend on the person exposed, but also on the particular mold colony.
Stachybotrys are widely considered to be the most dangerous form of indoor mold and produce mycotoxins and must be eliminated. Black mold can release several byproducts, such as spores, mold fragments, microbial volatile organic compounds (MVOCs), and mycotoxins. An inspection of the mold was carried out, ordered by the buyer, all the stains were opened, not a single stain of mold. Unfortunately, many people who venture into the world of mold do not know what they are doing or how to interpret the data from the mold tests that they have analyzed in the laboratory.
While there are thousands of species of mold, most homeowners are concerned about Stachybotrys chartarum, commonly known as “toxic mold” or “black mold”. We also solve mold. What you learn from opening walls and climbing in tight spaces teaches you a lot about how mold grows and where mold grows. It's also important when there is visible mold growth, since an 8-foot-tall wall covered with mold will have different spores along the height of the wall due to specificity.
If the test results are positive for mold spores, it's best to send the test to a laboratory to determine what type of mold it is and how to treat it effectively.