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Fifty fungal types were isolated from the indoor atmosphere of saw mills by exposing Petri plates containing Czapek-dox Agar, Potato-dextrose Agar and Sabouraud Agar media for 5 min. The fungal flora of the outdoor surroundings was also studied for comparison. Species of Aspergilli dominated in the saw mills, being represented by 16 species including one ascosporic form. Other fungi were species of Cladosporium, Alternaria, Curvularia, Penicillium, Fttsarfltm, etc. Variations in the fungal population in different months were also observed. Fungal spores recovered using the Rotorod Sampler were Alternaria, Curvalaria lunata, Curvularia tetrantera, Cladosporium, Dreschslera sp., Epicoccum sp., Pithomyes sp., Nigrospora, Stemphylium sp. and Torula sp. Mycelial fiagments and unidentifiable spores were also seen in abundance. Varying allergic responses of patients were also recorded by testing intradermally, the antigens of nine Aspergilli, viz Aspergillus flavus, A. fumigatus, A. japonicus, A. melleus, A. nidulans. A. niger, A. niveus. A. tammarii and A. terreus.

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The paper presents the result of qualitative and quantitative analyses of mycoflora in the air of Lucknow city and adjoining areas. Burkard slide sampler and Andersen two-stage volumetric samplers were employed for air sampling at forty places of Lucknow at different times of the year from January 1997 to February 1998. As many as thirty-five types of fungal spores and twenty-nine types of fungal colonies were registered. It has been envisaged that certain fungi such as Alternaria, Aspergillus, Chaetomium, Cladosporium, Curvularia, Diplodia, Epicoccum, Fusarium, Nigrospora, Penicillium. Rhizopus, Torula, Trichoderma, Trichothecium, etc., prevalent in the air are associated with the biodeterioration of cultural properties.