校园空气微生物浓度的监测与分析

Monitor and Analysis of Airborne Microbial Content in College Campus

了解大学校园四季空气微生物浓度及其变化趋势。采用撞击式采样器,在人员负荷最大、活动最频繁时,对某大学校园空气中细菌菌落总数和霉菌菌落总数进行检测。校园空气微生物浓度在季节间有很大不同,总的趋势是夏季最高,春秋次之。浓度比较高的功能区有道路、寝室、食堂、超市、体育馆和教室。校园空气微生物浓度在多种因素的综合影响下,季节间和不同功能区之间均表现出明显的差异。

Total amount and variation trend of bacterial and fungal colonies in the four seasons＇ air at a certain university campus were monitored adopting cascade impactor when the campus was in maximum personnel capacity and the most frequent activities.The results showed that the microbial content in the air of college campus was significantly different from season to season,in summer it came to a peak,followed by spring and autumn.There was comparative higher content in several functional regions,such as roads,dormitories,dining-halls,supermarket,gymnasium and classrooms.Therefore,microbial content varied from season to season under comprehensive effects of various factors and manifested apparent differences from one functional area to another.