PENGARUH PENGGUNAAN VENTILASI (AC DAN NON AC) DALAM RUANGAN TERHADAP KEBERADAAN MIKROORGANISME UDARA (Studi Kasus : Ruang Kuliah Jurusan Teknik Sipil Universitas Diponegoro)

Devi Nur Vidyautami, Haryono Setiyo Huboyo, Mochtar Hadiwidodo

Abstract


Classroom is one of room which has high potential indoor air pollution. The causes of indoor pollution come from the ventilation system (by use AC and non AC), the rooms condition,  and the presence of microorganism in the air. The purpose of the research is to determine the effect of microorganism presence by using ventilation in the classroom. Type of research is descriptive research with non-random sampling technique. Sampling was taken in the classroom at Civil Engineering Diponegoro University, which conditions were using the air conditioner, without air conditioner, there were people in the room and no one. The result showed that the colony number of Air Conditioned room was 34 colonies / m³, which less then the room without Air Conditioningwas 50 colonies/m³.  The colony number of microbes produced was appropriate the standard(˂700 colonies/m3). But it contains pathogenic bacteria such as Staphylococcus epidermidis, Staphylococcus saprophyticus, Streptococcus Alpha and Beta Streptococcus which can endanger the health of its inhabitants. The different number of microorganisms each room due to factors such conditions exist all rooms that includes the number of people, temperature, humidity, and light intensity.

Keywords


Classroom, Indoor air pollution, Ventilation system (by use Air Conditioner and without Air Conditioning), Biological Quality of air

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