(For USM Staff/Student Only)

EngLib USM > Ω School of Civil Engineering >

Investigation of microbiological concentration in indoor air at school classrooms

Investigation of microbiological concentration in indoor air at school classrooms / Wan Norfazlinda Wan Mohd Ali
Manusia menghabiskan sebahagian besar kehidupan mereka sama ada rumah, pejabat, sekolah, hospital dan kenderaan. Pencemaran udara dalaman adalah salah satu faktor persekitaran yang paling berbahaya bagi kesihatan manusia. Tujuan kajian ini dijalankan adalah untuk mengkaji tahap kepekatan bakteria dalam empat buah kelas, perbezaan kepekatan bakteria dengan atau tanpa kehadiran pelajar berserta aktiviti dan menentukan hubungan antara kepekatan bakteria dengan suhu dan kelembapan relatif bagi sekolah yang terpilih di Pulau Pinang, Malaysia. Kepekatan bakteria telah ditentukan menggunakan kaedah “settle plate”. Agar media yang digunakan adalah agar nutrien yang didedahkan kepada persekitaran selama 15 minit pada titik terpilih bagi setiap bilik darjah. Jumlah purata bacaan bakteria bagi setiap sekolah ialah 322.39 cfu/m3, 684.89 cfu/m3, 671 cfu/m3 dan 387.44 cfu/m3 bagi SK Bayan Lepas, SK Tasek Gelugor, SMK Mutiara Impian dan SK Machang Bubok. Kajian ini telah menunjukkan bahawa suhu dan kelembapan relatif mempengaruhi kiraan bakteria. Kesimpulannya, aktiviti oleh murid dan guru di dalam bilik darjah mempengaruhi jumlah bakteria yang dikira untuk sekolah terpilih di Pulau Pinang. _______________________________________________________________________________________________________ People spend most of their lifetime indoor whether residences, offices, schools, hospital and vehicles. Indoor air pollution is one of the most harmful environmental factors for human health. This study investigates the level of concentration of bacterial at four different school classrooms and determined the relationship of bacteria with temperature and relative humidity in Penang, Malaysia. The concentration of bacterial was determined using settle plate method. The agar media used was Nutrient Agar that were exposed to the atmosphere for 15 minutes at selected points in each school classrooms. The total of mean bacterial count for each school was 322.39 cfu/m3, 684.89 cfu/m3, 671 cfu/m3 and 387.44 cfu/m3 for SK Bayan Lepas, SK Tasek Gelugor, SMK Mutiara Impian and SK Machang Bubok, respectively. This study has shown that the temperature and relative humidity affect the bacterial counts. To conclude, activities from occupancy influence the bacterial count in selected schools in Penang.
Contributor(s):
Wan Norfazlinda Wan Mohd Ali - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007641
Language:
English
Subject Keywords:
People; indoor; air pollution
First presented to the public:
6/1/2018
Original Publication Date:
8/3/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 105
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-08-03 17:37:50.066
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

All Versions

Thumbnail Name Version Created Date
Investigation of microbiological concentration in indoor air at school classrooms1 2018-08-03 17:37:50.066
Engineering Library USM @ 2017