TY - JOUR
T1 - On-site application of air cleaner emitting plasma ion to reduce airborne contaminants in pig building
AU - Cho, Man Su
AU - Ko, Han Jong
AU - Kim, Daekeun
AU - Kim, Ki Youn
PY - 2012/12
Y1 - 2012/12
N2 - The objective of this field study is to evaluate temporal reduction efficiency of air cleaner emitting plasma ion on airborne pollutants emitted from pig building. The operation principle of air cleaner based on plasma ion is that hydrogen atoms and oxygen ions combine to form hydroperoxyl radicals (HOO -), which surround and attach to surface of airborne microorganisms and eliminate them by breaking the hydrogen bond in their protein structure. In gaseous pollutants, it was found that there is no reduction effect of the air cleaner on ammonia and hydrogen sulfide (p > 0.05). In particulate pollutants, the air cleaner showed mean 79%(±6.1) and 78%(±3.0) of reduction efficiency for PM 2.5. and PM 1, respectively, compared to the control without air cleaner (p < 0.05). However, there is no significant difference in TSP and PM 10 between the treatment with air cleaner and the control without air cleaner (p > 0.05). In biological pollutants, the mean reduction efficiencies for airborne bacteria and fungi by application of air cleaner were 22%(±6.6) and 25%(±8.7), respectively (p < 0.05). Based on the results obtained from this study, it was concluded that the air cleaner had a positive reduction effect on PM 2.5, PM 1, airborne bacteria and airborne fungi among airborne pollutants distributed in pig building while it did not lead to significant reduction of ammonia and hydrogen sulfide.
AB - The objective of this field study is to evaluate temporal reduction efficiency of air cleaner emitting plasma ion on airborne pollutants emitted from pig building. The operation principle of air cleaner based on plasma ion is that hydrogen atoms and oxygen ions combine to form hydroperoxyl radicals (HOO -), which surround and attach to surface of airborne microorganisms and eliminate them by breaking the hydrogen bond in their protein structure. In gaseous pollutants, it was found that there is no reduction effect of the air cleaner on ammonia and hydrogen sulfide (p > 0.05). In particulate pollutants, the air cleaner showed mean 79%(±6.1) and 78%(±3.0) of reduction efficiency for PM 2.5. and PM 1, respectively, compared to the control without air cleaner (p < 0.05). However, there is no significant difference in TSP and PM 10 between the treatment with air cleaner and the control without air cleaner (p > 0.05). In biological pollutants, the mean reduction efficiencies for airborne bacteria and fungi by application of air cleaner were 22%(±6.6) and 25%(±8.7), respectively (p < 0.05). Based on the results obtained from this study, it was concluded that the air cleaner had a positive reduction effect on PM 2.5, PM 1, airborne bacteria and airborne fungi among airborne pollutants distributed in pig building while it did not lead to significant reduction of ammonia and hydrogen sulfide.
KW - Air cleaner
KW - Airborne contaminant
KW - Pig building
KW - Plasma ion
UR - http://www.scopus.com/inward/record.url?scp=84867625600&partnerID=8YFLogxK
U2 - 10.1016/j.atmosenv.2012.08.049
DO - 10.1016/j.atmosenv.2012.08.049
M3 - Article
AN - SCOPUS:84867625600
SN - 1352-2310
VL - 63
SP - 276
EP - 281
JO - Atmospheric Environment
JF - Atmospheric Environment
ER -