Assessment of Respirable Dust and Bioaerosols in Dormitory Building: Case study of Kasetsart University Chalermphrakiat SakonNakhon Province Campus : การประเมินฝุ่นละอองและจุลินทรีย์ในอากาศภายในอาคารหอพัก:กรณีศึกษามหาวิทยาลัยเกษตรศาสตร์ วิทยาเขตเฉลิมพระเกียรติ จังหวัดสกลนคร
บทคัดย่อ
Indoor air quality is very important as the accumulation of dust and bioaerosols may adversely affect the health of those working or living for a long time in the building especially the university dormitory where they live and do various activities. The objective of this study was to assess the content of respirable dust and bioaerosols in the air inside the dormitory building. The sample collection was conducted between September and October 2018 in dormitory A and B, 18 rooms per each dormitory, totally 36 rooms. Total content of respirable dust, bacteria and fungus in the air was measured.
The results indicated that the average concentration of respirable dust in the dormitory A and B were 0.108 ± 0.040 mg/m3 and 0.116 ± 0.030 mg/m3, respectively. The concentration of respirable dust in all rooms did not exceed the level of air quality standard. The average bacteria counts in dormitory A and B were 105.80 ± 46.26 CFU/m3 and 201.20 ± 175.45 CFU/m3,respectively. One room (2.78%) had the bacteria count beyond the air quality standard count. The average fungus counts in dormitory A and B were 258.00 ± 165.65 CFU/m3 and 440.97 ± 324.75 CFU/m3, respectively. Eight rooms (22.22%) had fungus counts beyond the air quality standard count. Therefore, ventilation and room cleaning should be conducted regularly to reduce the concentration of bioaerosols, which may affect the students’ health in the dormitory.
Keywords : Respirable dust, Bacteria, Fungi, Dormitory
