|
KMID : 0895420030130030191
|
|
Journal of Korean Society of Occupational and Enviromental Hygiene
2003 Volume.13 No. 3 p.191 ~ p.197
|
|
|
Fluctuation of indoor air pollutants emitted from enclosed pig building in winter
|
|
Kim Chi-Nyon
|
|
|
Abstract
|
|
|
Optimal management of indoor air quality in enclosed swine house, especially in winter, is recognized to be indispensible
for preventing infection of the respiratory disease to workers as well as attaining the ultimate rearing. In order to reach it, therefore, research which elucidates the correlation of aerial contaminants and climate factors in enclosed swine house in terms of generation dynamics should be preceded. It was observed that indoor air pollution in enclosed swine house was highest at PM 2:00~5:00, followed by PM 8:00~11:00 and AM 8:00~11:00. It was assumed that this was attributed to increased swine activities in the afternoon. In general concentration of total dust and total airborne bacteria in enclosed swine house was investigated to have a significant correlation with temperature and relative humidity (p<0.05). There was a significant correlation between total dust and total airborne bacteria, between total dust and ammonia, and between total
dust and odor at 95% confidence level. In conclusion temperature and total dust concentration were assessed to have a generally significant correlation with all the variables except for hydrogen sulfide. This experi- mental results could be explained by the fact that drying of swine manure due to increase of internal temperature and resuspension of feed deposited to floor of swine house by swine activity resulted in high generation of dust which adsorbed and carried the airborne bacteria and odor compounds in enclosed swine house. It was proved that an adsorptive capacity of dust for odorous compound was higher for ammonia than hydrogen sulfide.
|
|
|
KEYWORD
|
|
|
Total dust, Total airborne bacteria, Odor, Ammonia, Hydrogen sulfide
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|