Distribution characteristics of airborne bacteria and fungi in the feedstuff-manufacturing factories

被引：52

作者：

Kim, Ki-Youn ^{[2
]}

Kim, Hyeon-Tae ^{[1
]}

Kim, Daekeun ^{[3
]}

Nakajima, Jun ^{[4
]}

Higuchi, Takashi ^{[4
]}

机构：

[1] Kyoto Univ, Grad Sch Agr, Kyoto, Japan

[2] Hanyang Univ, Inst Environm & Ind Med, Seoul 133791, South Korea

[3] Seoul Natl Univ Technol, Dept Environm Engn, Seoul, South Korea

[4] Ritsumeikan Univ, Dept Environm Syst Engn, Shiga, Japan

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 169卷 / 1-3期

关键词：

Feedstuff; Bioaerosol; Exposure assessment; Airborne bacteria; Airborne fungi; SWINE CONFINEMENT BUILDINGS; INDOOR AIR-QUALITY; RESPIRATORY SYMPTOMS; DOMESTIC DWELLINGS; PUBLIC BUILDINGS; ENVIRONMENT; BIOAEROSOLS; AEROSOLS; EXPOSURE; KOREA;

D O I：

10.1016/j.jhazmat.2009.04.059

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The objective of the study is to investigate the distribution patterns of airborne bacteria and fungi in three feedstuff-manufacturing factories in Korea. The geometric mean (+/- GSD) levels of airborne bacteria and fungi in the feedstuff-manufacturing factory were 113(+/- 18)cfu/m(3) and 89(+/- 5)cfu/m(3) for pelleting process and 198(+/- 5) cfu/m(3) and 124(+/- 12) cfu/m(3) for powdering process. respectively. The percentage of respirable (0.65-4.7 mu m)and total (> 4.7 mu m) concentration of airborne bacteria and fungi in the feedstuff-manufacturing factory ranged from 60% to 90% and were higher in pelleting process than powdering process. The ratio of indoor concentration and concentration in ventilation air from outside for airborne bacteria and fungi exceeded 1.0 regardless of types of feedstuff manufacture process. The predominant airborne microorganisms in the feedstuff-manufacturing factory were Staphylococcus spp., Micrococcus spp., Corynebacterium spp. and Bacillus spp. for airborne bacteria and Cladosporium spp., Penicillium spp. and Aspergillus spp. for airborne fungi, respectively. Based on the result of the study, there would be an association between relative humidity among environmental factors and airborne microorganism's bioactivity. Crown Copyright (c) 2009 Published by Elsevier B.V. All rights reserved.

引用

页码：1054 / 1060

页数：7

共 42 条

[1] Volumetric assessment of airborne fungi in two sections of a rural indoor dairy cattle shed [J].