不同时段室内空气甲醛浓度波动及预测模型

为确定寒冷地区室内空气甲醛浓度的不稳定性特征，在某一固定房间长期跟踪检测室内空气中甲醛浓度变化．检测结果表明：受室外气象（气温、风力、雨雪和气压等）和室内温、湿度变化的影响，不同日期和同一日期不同时间室内空气中甲醛浓度的变化与室内外环境状况呈一定的相关性．冬季甲醛浓度的波动性大于夏季，且冬季和夏季影响甲醛浓度波动因素的权重也有差别，据此建立了相应的浓度波动预测模型．

Analysis and model of indoor formaldehyde concentration fluctuation in different periods

In order to find out the vertiginous character of indoor formaldehyde concentration in a chilly area,a long investigation of indoor formaldehyde concentration variation was made in a fixed room.Analysis of the investigation results showed that the indoor formaldehyde concentration changed on different days and at different times during a day from the influence of outdoor climate(such as temperature,wind power,snow or rain,and air pressure) and indoor temperature and humidity.The variation of formaldehyde concentration and the ambient conditions present a state of relativity to a certain extent.The fluctuation of formaldehyde concentration in winter is larger than that in summer and the proportion of factors that influence the formaldehyde concentration is different in winter and summer.Based on the results,a model was made to predict the fluctuation of formaldehyde concentration.