ERMI Testing vs. Non-Viable Mold Air Samples
ERMI stands for the Environmental Relative Moldiness Index
This sampling is a combination of EPA research, powerful PCR technology, and a new method to screen buildings for mold and other contaminants. It was developed by scientists at the EPA to provide a straightforward, objective, and standardized way to obtain results for indoor air quality investigations. The EPA is developing an ERMI ranking system based on dust samples collected from homes across the U.S. The ERMI will help predict the moldiness of homes. Homes with high ERMI values have a greater chance of having a mold problem then homes with a low ERMI. 36 different fungi make up the ERMI and are designated as Group I (those found in atypical, water-damaged homes) and Group II (those commonly found in all homes):
An ERMI test is a composite dust sample test. Because of this, we cannot determine from these results where the contamination or source(s) of moisture causing any contamination are located. We also cannot give accurate cleanup instructions (remediation protocol) with this sort of sampling.
Non-Viable Mold Air Samples
This type of sampling is the industry standard for determining contamination and aiding in developing a remediation protocol if elevated mold is found.
Through the use of spore trap cassettes and pumps, we collect air for each non-viable mold air sample. 75 liters of air is collected through the cassette and pump and is then analyzed for both dead and live mold spores. The laboratory identifies the genera of the mold(s) present on the slide in the cassette and reports the results in spores/m³ (spores per cubic meter).
These samples are collected to determine the amount(s) and type(s) of fungal components present in the indoor sampling location as compared to those found outdoors. The sample(s) collected to represent the conditions present at the time the samples were taken. The information these results provide may be used to decide if remediation action is necessary.