室内空气中的甲醛检测分析及其预测模型

Indoor air formaldehyde measurement analysis and its prediction model

对2003年哈尔滨市居室室内空气中的甲醛污染检测与统计分析表明,随机检测的246个样本中甲醛浓度范围0.017～1.302mg/m3,年均值为0.219mg/m3,样品超标率77.24%.夏季6～8月的甲醛浓度月平均值是冬季采暖期的2.0倍.各月室内甲醛平均浓度与各月平均温度具有良好的线性相关性,相关系数R2=0.8652.依据影响甲醛浓度的因素及其实测数据,建立了预测室内空气中甲醛浓度的数学模型.

Measurement analysis and statistic analysis of the indoor air formaldehyde pollution for the inhabitant houses in Harbin City during 2003 showed that in 246 samples of random measurement, formaldehyde concentrations were 0.017-1.302 mg/m3, annual average was 0.219mg/m3, the samples exceeding the formaldehyde concentrations standard was 77.24%. The monthly average formaldehyde concentrations in July to August of summer were about 2 times of those during building heating period in winter. The indoor monthly average formaldehyde concentrations and the monthly average indoor air temperature possessed good linear correlatively with correlation coefficient (R2) of 0.8652; and a mathematical model for predicting indoor air formaldehyde concentration was established based on the factors affecting formaldehyde concentration and its data measured actually.