京津地区大气微生物本底研究

大气微生物包括细菌、霉菌、放线菌、病毒等。从环境保护角度看,它们是空气污染物,有些细菌和霉菌能使人、动物、植物致病,很多细菌和霉菌使工农业原料和产品腐败霉烂。因此,大气微生物是一个值得重视的环境问题。 大气微生物是气挟微生物,随着气流的流动而飘移,其来源复杂,在研究其问题和规律性时就存在着一定的困难。对大气微生物的研究可以追溯到十七世纪,但在本世纪以来,特别是近几十年,很多国家如美国、法国、英国、印度、瑞典、日本和我国等都开展了研究。1978年在慕尼黑召开了第一届国际大

Background Levels of Airborne Microbe in Beijing-Tianjin Region

In Beijing-Tianjin region of 34500km², 1100 sampling points have been set up in different types of ecological environment, more than 20000 samples of airborne bacteria and airborne micro-fungi collected, and then over 20000 specimens of microfuhgi and 400 of bacteria identified. Tens of graphs of pollution distribution of airborne bacteris and microfungi and their variation were mapped. According to-the author, pollution conditions of bacteria and microfungi in the ambient air may be divided into seven levels, which will make pollution monitoring.of airborne bacteria available.