摘要
目的了解合肥市空气微生物群落结构和分布特征。方法采用自然沉降法对合肥市10个采样点进行空气微生物监测。结果合肥城区空气细菌总数均值为5.04×104cfu/m3,真菌总数均值为3.75×103cfu/m3,合计为5.41×104cfu/m3,其中真菌占6.92%;对不同采样点的空气细菌和真菌进行了初步鉴定,优势细菌属为微球菌属(Micrococcus)、芽孢杆菌属(Bacillus)、假单胞菌属(Pseudomonas)和葡萄球菌属(Staphylococcus),分别占总细菌的37.3%,21.0%,10.3%,9.5%;真菌共检出5属,其中优势菌属为曲霉属(Aspergillum)、青霉属(Penicillium)、毛霉属(Mucor)、根霉属(Rhizopus),分别占总真菌的42.0%,36.0%,4.4%,4.2%。结论合肥城区空气微生物的分布不仅与环境因素、污染因子有关,还受到人类活动、动植物等因素的影响。
Objective To understand the air microorganisms pollution and the community structure and distribution characteristics of outdoor airborne microbes in Hefei. Methods Airborne microbes were sampled by fallen plate method at 10 collection sites in the Hefei city. Results The results showed that the average concentration of the bacteria,fungi and total microbes in the outdoor environment were 5.04 × 10^4,3.75 × 10^3 and 5.41 × 10^4 cfu/m^3 respectively and the fungi accounted for 6.92% of the total. The preliminary identification showed that the dominant bacteria mainly were Micrococcus, Bacillus, Pseudomonas and Staphylococcus and the average percentage were 37.3%, 21.0%, 10.3% and 9.5% respectively. Of the five fungi the dominant ones were Aspergillum, Penicillium, Mucor and Rhizopu. The average percentage were 42.0%,36.0%,4.4% and 4.2% respectively. Conclusion The outdoor air of Hefei has been polluted by airborne microbes. The distribution of the airborne microbes has the characteristics of time and space.It is affected not only by the environment and pollution, but also by such factors as human activities, animals and plants.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2007年第1期40-42,共3页
Journal of Environment and Health
基金
安徽省教育厅自然科学研究项目(2006KJ108B)
