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[目的]掌握并评价成都市武候区辖区内正常营业中的部分公共场所室内空气中甲醛浓度水平、分布规律及其特点。[方法]使用Interscan4160型便携式甲醛分析仪测定成都市武候区345个公共场所检测样本,1607个检测点的空气中甲醛浓度,同时测定其气温、气湿和风速。[结果]公共场所甲醛的总超标率为13.44%,最高为文化娱乐类场所,超标率高达17.03%,最低为宾馆饭店类场所。室内空气甲醛超标率随气温、气湿升高而增大(P﹤0.05);随风速增大而减小(P﹤0.05)。[结论]公共场所室内空气甲醛浓度最高为文化娱乐类场所,甲醛超标率与室内微小气候密切相关。
[Objective] To master and evaluate the formaldehyde concentration, distribution and characteristics of indoor air in some public places in the normal operation of Chengdu Military Region. [Method] Interscn4160 portable formaldehyde analyzer was used to determine the concentration of formaldehyde in the air of 345 public places in 160 prefecture-level military prefectures in Chengdu and the air temperature, air humidity and wind speed were measured simultaneously. [Result] The total formaldehyde exceeding rate in public places was 13.44%, the highest was cultural and entertainment venues, exceeding the standard rate as high as 17.03%, the lowest for hotel and restaurant. The formaldehyde in room air exceeded the standard with the temperature and humidity increased (P <0.05), and decreased with the increase of air speed (P <0.05). [Conclusion] The formaldehyde concentration in indoor air of public places is the highest for cultural and entertainment venues. The exceeding standard rate of formaldehyde is closely related to the indoor microclimate.