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2. MICROBES in the AIR Gases Water vapour Algal spores Fungal spores Common bacteria E.coli S.marcesens S.aureus Dust particles ( Microbiologyprocedure, 2008)
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4. The SOURCES of Microbes in Air Wind blown long suspension time Human/Animal breath cough sneeze talk laugh Aerosols machine fans air conditioners vents Man's Actions ploughing digging excavation construction irrigation fertilizers Water droplets fountains streams ponds rivers
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7. Bibliography Microbiologyprocedure.com. (2008). Air Microbiology, Microorganisms Composition in Air, Troposphere... .Retrieved August 13, 2008, from http//:www.microbiologyprocedure.com/air-microbiology/hesss-tub McKinney. R.E. (2004). Environmental Pollution Control Microbiology. Retrieved August 12, 2008, from http//:www.pagesbooks.google.com/books?isbn =082475493X ...