Mold

What it is: Mold is a biological contaminant that can grow in damp environments and can cause respiratory problems. 

Sources in Schools: Biological contaminants are often found in areas that provide food and moisture. For example, wet areas that can become moldy are cooling coils, humidifiers, gyms, locker rooms, kitchens, and unvented bathrooms. (Source: EPA Indoor Air Quality Action Kit)

Health Effects: Mold can trigger asthma reactions and possibly cause allergic reactions. Allergic reactions can include  sneezing, runny nose, red eyes, and skin rashes. Mold may also cause irritation to the eyes, skin, nose, throat, and lungs. (Source: EPA Mold and Health)

Policy: Currently, there are no EPA regulations or standards for airborne mold contaminants.

Devices and Measures

Visually Measuring Mold

Mold can be visually identified by inspecting the area and looking for any mold growth.


To measure mold that has been visually identified, you can measure the quantity of mold by estimating the area that it covers. 


This can be done by taking a photo of the moldy area and overlaying a grid to calculate the area covered. Square units can be used to report measurements, such as square inches (in2) or square centimeters (cm2).

Other Measurements: Mold can be measured using a mold test kit. Mold test kits can be found at many home improvement stores or online. Professional mold inspectors can also be hired.