In the mold remediation industry the focus tends to be, understandably, on areas where mold is growing on building materials or contents. The EPA and the New York City (NYC) Department of Health have published guidelines that offer recommendations for personal protective equipment (PPE) and engineering controls based on the amount of visible mold growth in an area. Obviously, visible mold growth needs to be properly addressed. However, physical growth
is not the only form of contamination related to mold.
Spores released by mold sources can settle on surfaces that are not otherwise contaminated by mold growth. This spore deposition can remain long after the actual mold growth is removed and can continue to cause symptoms if it is not dealt with. In this article, we will discuss (1) how to determine if airborne spore deposition has impacted surfaces, (2) how to clean surfaces that have been impacted by airborne spores, and (3) how to determine if the cleaning was effective in removing the deposited mold contamination.