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公共场所主要卫生指标为空气中的二氧化碳浓度，可吸入颗粒物浓度及细菌总数。它们之间究竟存在什么样的关系？根据我站1997年全年的监测资料，从室外对照点、室内空场和中场3种状态，对3项指标之间的关系进行相关性分析。1方法相关性显著性水平，采用相关系数界值表判别。其中
The main health indicators in public places are the concentration of carbon dioxide in the air, the concentration of respirable particulate matter and the total number of bacteria. What exactly is the relationship between them? According to the monitoring data of our station for the whole year of 1997, the correlation between the three indicators was analyzed from the outdoor control points, indoor open field and midfield. 1 significance of the level of correlation of the method, using the correlation coefficient cut-off table discrimination. among them