ERMI Groups

ERMI stands for Environmental Relative Mouldiness Index. This is a scale used to understand the levels of mould in your home, office or whatever environment you're testing. 

In order to calculate the ERMI for your mould sample we group the species of mould found into two groups; Group I being moulds associated with water damage and Group II being moulds not associate with water damage. A simple calculation is then performed based on the outcome of the analysis of your mould sample. 

Below is a list of the mould species associated with the two groups.

To find out more about a specific species simply click on the link provided. 

Group I

 

Group II

Moulds Associated with
Water Damaged Buildings

 

Moulds Normally Found in
Unaffected Buildings

Aspergillus flavus/oryzae

  Acremonium strictum

Aspergillus fumigatus

  Alternaria alternata

Aspergillus niger

  Aspergillus ustus

Aspergillus ochraceus

  Cladosporium cladosporioides 1

Aspergillus penicillioides

  Cladosporium cladosporioides 2

Aspergillus restrictus

  Cladosporium herbarum

Aspergillus sclerotiorum

  Epicoccum nigrum

Aspergillus sydowii

  Mucor amphibiorum*

Aspergillus unguis

  Penicillium chrysogenum

Aspergillus versicolor

  Rhizopus stolonifer

Aureobasidium pullulans

   

Chaetomium globosum

   

Cladosporium sphaerospermum

   

Eurotium (Asp.) amstelodami

   

Paecilomyces variotii

   

Penicillium brevicompactum

   

Penicillium corylophilum

   

Penicillium crustosum

   

Penicillium purpurogenum

   

Penicillium spinulosum

   

Penicillium variabile

   

Scopulariopsis brevicaulis/fusca

   

Scopulariopsis chartarum

   

Stachybotrys chartarum

   

Trichoderma viride

   

Wallemia sebi