建筑室内外空气真菌浓度相关性案例测试分析
Case study on correlation between indoor and outdoor airborne fungal concentrations
摘要：
选取某高校学生办公室进行室内外空气真菌浓度相关性和粒径的研究。结果表明：室内空气真菌浓度变化范围为1 698~4 429 cfu/m3，最大值出现在12：00；室外浓度范围为3 569~29 452 cfu/m3，最大值也出现在12：00。室内外空气真菌浓度比值均小于1，Spearman相关性分析显示室内外空气真菌呈显著正相关，且线性回归分析表明室外空气真菌是室内空气真菌的显著影响因子，可推断本研究的室外空气真菌是室内的主要来源。室内空气真菌浓度与室内人数呈显著正相关。室内外空气真菌均从Ⅰ级到Ⅳ级逐渐增加，而后Ⅴ级到Ⅵ级逐渐减小，最大值出现在第Ⅳ级，可进入人体下呼吸道的室内外空气真菌粒径占比达85.0%以上。
Abstract：
Presents the indoor and outdoor airborne fungal concentration correlation and particle size of a student office in a university. The results show that the variation range of indoor airborne fungal concentration is 1 698to 4 429 cfu/m3, and the outdoor concentration range is 3 569 to 29 452 cfu/m3, with the highest values at 12:00. The ratio of indoor and outdoor airborne fungal concentration is below 1, and Spearman correlation analysis shows a significant positive correlation between indoor and outdoor airborne fungi, and linear regression analysis shows that outdoor airborne fungal concentration is a significant factor affecting indoor fungal concentration, representing outdoor airborne fungi being the main source. The indoor fungal concentration is significantly positively correlated with the number of indoor occupants. Indoor and outdoor airborne fungi gradually increase from stage Ⅰ to stage Ⅳ, and then decrease from stage Ⅴ to stage Ⅵ, with the highest value at stage Ⅳ. More than 85.0% of the particle size of indoor and outdoor airborne fungi can reach people’s lower respiratory tract.
Keywords:airborne fungi, concentration distribution, size distribution, indoor and outdoor airborne fungal correlation, linear regression analysis