ABSTRACT
References ................................................................................................................ 38
There are an estimated 1.5 million fungal species worldwide. However, only about 100,000 or 5 percent of the 1.5 million species have been identified (Mueller and Schmit, 2007). Of the 100,000 known fungi only a small percentage (<0.1%) are commonly associated with the indoor environment (Macher, 1999; Samson et al., 2002; Vesper et al., 2007a; Zorman and Jersek, 2008). The mold species that do occur indoors have adapted to occupy a unique ecological niche that fosters little competition but an abundance of resources.
