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Characterization of airborne bioaerosol concentration at the apartment in chungnam area  

Son Bu-Soon (Department of Environmental Health Science, Soonchunhyang University)
Chun Jae-young (Department of Environmental Health Science, Soonchunhyang University)
Yang Won-ho (Department of Occupational Health, Catholic University of Daegu)
Chung Tae-Woong (Department of Earth Science, Sejong University)
Publication Information
Journal of environmental and Sanitary engineering / v.20, no.4, 2005 , pp. 21-30 More about this Journal
Abstract
This research was performed to measure the concentration distribution of bioaerosol in apartment houses in the region of Chungnam (Chunan, Asan) for 1 month, December, 2004. The results are as follows. 1. By using SDA method, the average concentration of total microbe and fungus in the air inside and outside apartment house below 4 years are $69,42cfu/m^3\;and\;15.66cfu/m^3$, while apartment house over 4 years, $214.58cfu/m^3\;and\;216.43cfu/m^3$, respectively With gravitational sedimentation method, the average concentration of total microbe and fungus of apartmenthouse below 4 years are $100.63cfu/m^3\;and\;22.83cfu/m^3$, while apartment house over 4 years, $216.43cfu/m^3\;and\;70.000cfu/m^3$, respectively. 2. The I/O ratio of floating germ of apartment house below 4 years and over 4 years are 2.87 and 5.12 for total microbe, and 3.32 and 8.28 for fungus, respectively. The I/O ratio of falling germ of apartment house below 4 years and over 4 years are 1.55 and 2.81 for total microbe, and 2.85 and 4.08 for fungus, respectively. The apartment house below 4 years shows a low I/O ratio in all cases. 3. The difference in concentration of microbe between inside master bedroom and living room of apartment house below 4 years is $13.183cfu/m^3$, total microbe, and $4.787cfu/m^3$, fungus, while, apartment house over 4 years, $43.531cfu/m^3$, total microbe, and $21.932cfu/m^3$, fungus. The measured differences are statistically significant. 4. Air sampler was used to verify the difference in concentration of microbe with the age of apartment house. The difference in concentration of total microbe and fungus for outside apartment house below 4 years and over 4 years are $49.82cfu/m^3$ and $3.78cfu/m^3$, respectively. The difference of inside living room shows $160.23cfu/m^3$ for total microbe and $28.01cfu/m^3$ for fungus, and the difference of inside master bedroom shows $225.43cfu/m^3$ for total microbe and $56.73cfu/m^3$ for fungus. The differences are statistically significant. The difference in concentration of outside apartment house below 4 years and years 4 years are $34.66cfu/m^3$, total microbe, and $15.66cfu/m^3$, fungus, while inside apartment house below 4 years and over 4 years, $196.93cfu/m^3,\;and\;78.67cfu/m^3$, respectively. The measured differences are statistically significant.
Keywords
bioaerosol; gravitational sedimentation; fungus; I/O ratio;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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