On-site application of air cleaner emitting plasma ion to reduce airborne contaminants in pig building

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...

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Bibliographic Details
Published in:Atmospheric environment (1994) 2012-12, Vol.63, p.276-281
Main Authors: Cho, Man Su, Ko, Han Jong, Kim, Daekeun, Kim, Ki Youn
Format: Article
Language:English
Subjects:
air
Air cleaner
Airborne contaminant
airborne microorganisms
ammonia
Applied sciences
atmospheric chemistry
Atmospheric pollution
Exact sciences and technology
free radicals
fungi
hydrogen
hydrogen bonding
hydrogen sulfide
ions
oxygen
Pig building
Plasma ion
pollutants
Pollution
Prevention and purification methods
protein structure
swine
Transports and other
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Summary: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 PM2.5. and PM1, respectively, compared to 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 
ISSN:1352-2310
1873-2844
DOI:10.1016/j.atmosenv.2012.08.049