Comprehensive characterization of indoor airborne bacterial profile

作     者：P. L. Chan P. H. F. Yu Y. W. Cheng C. Y. Chan P. K. Wong 

作者机构：Department of Biology The Chinese University of Hong Kong Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Department of Microbiology The Chinese University of Hong Kong 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2009年第21卷第8期

页      面：1148-1152页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 100403[医学-营养与食品卫生学] 10[医学] 

基　　金：supported by a research grant from the Research Grant Council of the Hong Kong SAR Government  China 

主　　题：airborne bacterial profile bacterial identification indoor air quality 

摘      要：This is the first detailed characterization of the airborne bacterial profiles in indoor environments. Two restaurants were selected for this study. Fifteen genera of bacteria were isolated from each restaurant and identified by three different bacterial identification systems including MIDI, Biolog and Riboprinter. The dominant bacteria of both restaurants were Gram-positive bacteria in which Micrococcus and Bacillus species were the most abundant. Most bacteria identified were representative species of skin and respiratory tract of human, and soil. Although the bacterial levels in these two restaurants were below the limit of the Hong Kong Indoor Air Quality Objective （HKIAQO） Level 1 standard （i.e., 〈 500 cfu/m^3）, the majority of these bacteria were opportunistic pathogens. These results suggested that the identity of airborne bacteria should also be included in the IAQ to ensure there is a safety guideline for the public.