Sixty-six fungal species in addition to two species varieties belongin
g to 31 genera were isolated during the current study from water close
t (WC) sewage samples (39 species and two varieties in 20 genera) and
WC air (53 species and two varieties in 25 genera). There were more fu
ngi in the WC air than in sewage. The most prevalent fungi in WC sewag
e and air were members of the genera Aspergillus, Cladosporium and Pen
icillium. Acremonium, Alternaria, Emericella, Mycosphaerella and Pleos
pora were dominant only in WC air. Some species of these genera are co
nsidered to be true or opportunistic pathogens. The pollution level du
e to the bacterial flora either in the air or in the sewage of WCs was
relatively higher than that of the fungal flora. Testing the capabili
ty to produce urease, nearly all fungal isolates (65 out of 67) and ba
cteria tested (35 out of 36) proved to be good urease producers.