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An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

European Journal of Pharmaceutical and Medical Research (EJPMR) has indexed with various reputed international bodies like : Google Scholar , Indian Science Publications , InfoBase Index (In Process) , SOCOLAR, China , Research Bible, Fuchu, Tokyo. JAPAN , International Society for Research activity (ISRA) , Scientific Indexing Services (SIS) , Polish Scholarly Bibliography , Global Impact Factor (GIF) (Under Process) , Universal Impact Factor , International Scientific Indexing (ISI), UAE  , Index Copernicus , CAS (A Division of American Chemical Society) USA (Under Process) , Directory of Open Access Journal (DOAJ, Sweden, in process) , UDLedge Science Citation Index , CiteFactor , Directory Of Research Journal Indexing (DRJI) , Indian citation Index (ICI) , Journal Index (JI, Under Process) , Directory of abstract indexing for Journals (DAIJ) , Open Access Journals (Under Process) , Impact Factor Services For International Journals (IFSIJ) , Cosmos Impact Factor , Jour Informatics (Under Process) , Eurasian Scientific Journal Index (ESJI) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Pubmed Database [NLM ID: 101669306] (Under Process) , IP Indexing (IP Value 2.40) , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , Scope Database , Academia , 

 ISSN 2394-3211

Impact Factor: 7.065

 ICV - 79.57



Abdel-Kareem Mohamed El-Basheer, Altayeb Elazomi*, Abdurraouf Zaet, Azab Elsayed Azab, A. Dhawi and Fathi Abdallah Shakurfow


Background: Spores of fungi, bacteria and actinomycetes are always present in large number in dusts and indoor air of schools. Some of these fungi are recognized to play a role in causing human and animal diseases. Studying the different groups of fungi such as spores and mycelium fragments of mesophilic (glucophilic, pathogenic and keratinophilic) fungi is of considerable important. Objectives: The present investigation is aimed to study the occurrence, the distribution, the seasonal variations, and the fluctuations of the fungi inhabiting dusts and indoor air of elementary and preparatory schools at Zawia governorate. Methods: Fifty floor dust samples were collected during January to April 2006 from different Elementary and Preparatory schools at Zawia city. Also, twenty-four floor dust samples were collected fortnightly during January-December 2006 from classrooms of Al-Shabbani Bin Nasart School at Zawia city. All samples were stored at a refrigerator (2-5 °C) till use. Modified-Czapek's agar medium used for isolation ofglucophilic fungi and Sabourauddextrose agar medium was used for isolation of pathogenic fungi. Theisolation of keratinophilic fungi was achieved by hair baiting technique. The developing colonies were counted, examined, identified and the total number of eachgenuswas calculated. Results: 18 genera of Glucophilic fungi, 11 Pathogenic fungi genera, and 13 Keratinophilic fungi genera were isolated from 50 floor dust samples. The most common Glucophilic fungi genera were: Alternaria, Aspergillus, Cladosporium, Emericella, Fusarium, Mucor, Penicillium, and Ulocladium were isolated in high frequencies of occurrence. Pathogenic fungal genera; Alternaria, Aphanoascus, Aspergillus, Mucor and Penicillium were recovered in high frequencies of occurrence as well on Sabouraud dextrose agar. The most common Keratinophilic fungi genera were: Alternaria, Aphanoascus, Aspergillus and Trichophyton. The average maximum and minimum temperature of the air of Al-Sabbani Bin Nazart elementary school during the experimental period ranged between 20° - 36°C and l0°C-26 °C, respectively. The average maximum and minimum relative humidity fluctuated between 60 -95 % and 8-24%, respectively. The monthly counts of Glucophilic fungi genera irregularly fluctuated and the highest count was estimated during spring and the lowest in summer. The monthly counts of pathogenic and keratinophilic fungi were irregularly fluctuated and varied giving peaks in January and December and minima during August and June, respectively. The monthly counts of airborne fungi fluctuated irregularly and the peak was found in winter. The monthly counts of Pathogenic and keratinophilic fungal genera irregularly fluctuated giving peaks during December and April, respectively. Conclusion: It can be concluded that a various fungal genera were isolated from floor dust, and indoor air samples. The most prevailed fungal genera isolated were Alternaria, Aspergillus, Penicillium, Mucor, Ulocladium, Emericella and Rhizopus. Overall, the highest number of fungal genera was obtained from floor dust samples. Our results obtained of pathogenic and non-pathogenic fungi in the floor dust and indoor air of Elementary and Preparatory schools were almost basically similar to those fungi in many parts of the world but with different numbers, frequencies and months of fungi. Further studies on mycoflora taxa frequently isolated from floor dust and indoor air environment of schools in different governorates of Libya would be interesting. A large number of fungal species still waiting proper identification. Different modern sampling techniques can be used to investigate culture ability and total fungal spores and to estimate Colony Forming Units (CFU).

Keywords: Fungi genera, Floor dust, Indoor air, Elementary schools, Preparatory schools, Zawia governorate.

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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing Scholar Article Journal Index (SAJI) International Scientific Indexing ( ISI ) Scope Database Academia