The distribution of bio-aerosols in diverse environments is a major concern to aero-microbiologists and environmentalists in general. The study evaluated the mycological quality of the air environment around a market along East-West road in Bayelsa State, Nigeria. Petri dish containing sterile Potatoes dextrose agar was exposed for 10 minutes around a market along East-West road in Bayelsa state at a height of 1 meter. The density and diversity of the isolates were determined following standard mycological procedures. The density of the fungi–aerosols ranged from 0.0073 - 0.0268 CFU/min-m2 and was statistical higher in dry (November, January and March) compared to wet (May, July and September) seasons, an indication of seasonal influence. A total of 11 fungi species were recorded with 5 predominant species viz Aspergillus fumigatus, Aspergillus flavus, Aspergillus niger, Fusarium chlamydosporum and Penicillium species (occurring in ≥66.67% of the study months), while 6 species, Aspergillus lentulus, Aspergillus nidulans, Aspergillus terreus, Cladosporium cladosporioides, Microsporum canis and Mucor species are opportunistic occurring in ≤50% of the study months). Most fungi species are found in the soil, and are known to produce toxins and cause diseases. There is need for a concerted effort by local government authorities via its agencies to sensitize people on proper hygiene practices around markets.
This study examined the mycological quality of groundwater in Yenagoa metropolis, Bayelsa State, Nigeria. Triplicate water samples were obtained from 8 locations in the metropolis, and the fungi quality analyzed following standard microbiological procedures. Results showed that total fungi density ranged from 5.2±1.00 x102 to 8.50±0.56 x103 CFU/ml. Analysis of variance indicates statistical variation (p=0.001) across locations with total fungi density exceeding the limit of 102 CFU/ml specified by World Health Organization/Food and Agricultural Organization for potable water in 62.50% of samples. Eight fungi isolates (species) were identified in the study with frequency across the locations as follows: Aspergillus flavus (20.59%), Aspergillus fumigatus (20.59%), Aspergillus niger (20.59%), Cladosporum (5.88%), Fusarium (2.94%), Mucor (8.82%), Penicilium (14.71%) and Rhizopus (5.88%). Of these, Aspergillus species were predominant across the locations. Since groundwater meets diverse purposes, it is essential that it is suitable for the desired use, and this can be done using appropriate technology to make groundwater potable for human consumption.
This study examined the mycological quality of groundwater in Yenagoa metropolis, Bayelsa State, Nigeria. Triplicate water samples were obtained from 8 locations in the metropolis, and the fungi quality analyzed following standard microbiological procedures. Results showed that total fungi density ranged from 5.2±1.00 x102 to 8.50±0.56 x103 CFU/ml. Analysis of variance indicates statistical variation (p=0.001) across locations with total fungi density exceeding the limit of 102 CFU/ml specified by World Health Organization/Food and Agricultural Organization for potable water in 62.50% of samples. Eight fungi isolates (species) were identified in the study with frequency across the locations as follows: Aspergillus flavus (20.59%), Aspergillus fumigatus (20.59%), Aspergillus niger (20.59%), Cladosporum (5.88%), Fusarium (2.94%), Mucor (8.82%), Penicilium (14.71%) and Rhizopus (5.88%). Of these, Aspergillus species were predominant across the locations. Since groundwater meets diverse purposes, it is essential that it is suitable for the desired use, and this can be done using appropriate technology to make groundwater potable for human consumption.
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