Essay On Atmospheric Pollution

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Air pollution by microbiota entities is a growing menace to human health throughout the world. Various allergic and infectious ailments of man are caused by air borne microbes [2]. In recent years, a number of factors have stimulated an increased awareness of the presence of potentially pathogenic bioaerosols in indoor and outdoor environments and the detrimental health effects associated with them. Although, indoor environments are considered to be protected, they can become contaminated with particles that present different and sometimes more serious risks when their concentrations exceed recommended maximum limits than those related to outdoor exposures [3]. The recommended maximum limits are 1000 cfum-3 for the total number of bioaerosol particles as set by the National Institute of Occupational Safety and Health (NIOSH) while the American conference of governmental Industrial Hygienists (ACGIH) stipulated that the culturable count for total bacteria should not exceed 500 cfum-3 [4]. The microbiological quality of indoor air in hospitals is an issue with increased emphasis than in other type of building because of …show more content…

This was incubated at 37oC until turbidity marched that of 0.1% BaSO4 solution then a swab stick was used to inoculate onto the surface of freshly prepared nutrient agar plates. A multiple antibiotics disc was placed on the already seeded agar plate (The disc contained the following antibiotics; ciprofloxacin (10µg), streptomycin (30 µg) septrin (30 µg), ampliclox(30 µg), zinnacef(20 µg), amoxicillin(30 µg), tarivid(10 µg), gentamycin(10 µg),rocephin(25 µg), augumentin(30 µg), erythromycin(10 µg), perfloxacin(10 µg) and sarfloxacin(10 µg) . Then, plates were incubated at 37oC for 24h, at the end zones of inhibition were measured. Zones less than 14mm were taken as

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