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자료유형
학술저널
저자정보
저널정보
한국환경보건학회 한국환경보건학회지 한국환경보건학회지 제36권 제3호
발행연도
2010.1
수록면
191 - 198 (8page)

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The aim of this study was to determine the concentrations of air-borne microorganisms (bacteria, fungi, gram negative bacteria (GNB), endotoxins, and respirable suspended particles (RSPs), and their correlation with environmental parameters (temperature, humidity, and carbon dioxide levels) in duck houses. The mean concentrations of bacteria, fungi, and GNB were very high (>106 CFU/m3), and endotoxin levels exceeded 103 EU/m3. Among the various work stages, in the task of receiving ducks, bacteria were 6.2×106 CFU/m3, and GNB were 5.4×106 CFU/m3, while RSPs levels were 397.6μg/m3 and endotoxin levels were 47.2×103 EU/m3 in the task of dividing the ducks, and fungi were 4.9×106 CFU/m3 in the task of shipping the ducks. The concentrations of RSPs and endotoxins were significantly higher in tasks involving greater movement of ducks in the house, relative to tasks involving little movement of ducks (p<0.05). Further, with progression in growth of the ducks, the concentrations of bacteria, GNB, endotoxins, and RSPs were significantly increased. There was significant correlation between levels of GNB with bacteria (r=0.75) and fungi (r=0.86), endotoxins with RSPs (r=0.75), bacteria with fungi (r=0.39), and carbon dioxide with RSPs (r=0.38), bacteria (r=0.33), and endotoxins (r=0.31). These results suggest considerable respiratory hazard for farmers in these environments.

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