| Author(s) | Muhammad F. Al-Shahwani, Abdullateef K. Hamood, Akeel M. Muhammad, Nabeel A. Daa`er and Ghareeb A. Al-Muqbily |
| Affiliation | Department of Medical Microbiology, Faculty of Science, University of Ibb, Ibb, Yemen |
| Title | Bacterial Distribution Analysis in the Atmospheric Air of the Primary and Secondary Schools |
| Source | Journal of King Saud University. Science. Volume 17, No 1. (2005/1425) |
| Abstract | Bacterial distribution analysis of the atmospheric air of fourteen primary and sixteen secondary school classes at Ibb City in Yemen was performed during the period between February and May, 2002. The average number of blood agar grown bacteria in non-ventilated, semi-ventilated, and well-ventilated school classes were 492, 269, and 246 cfu/50 liters of air sample respectively. Primary schools showed a higher value of bacterial counts, compared to the secondary schools. The concentration of the bacteria inside the school classes was higher than those of school square. Inside the classes, in spite of approximate values of student per unit area, i.e. 0.64m2, the total number of bacteria per cubic meter was observed to be inversely proportional with the class volume. |
