不同人造板材室内甲醛的污染水平及来源分析

Study on the source and pollution level of indoor formaldehyde from different kind of man-made broads

目的：了解居室装修中使用不同人造板室内甲醛的污染水平,分析其污染来源。方法：根据装修时所用材料的不同,选择贵阳市新装修居室12户,面积均为120m2,其中：使用酚醛树脂板材的6户,脲醛树脂的6户,甲醛的测定按居住区大气中甲醛卫生检验标准方法（GB/T16129-1995）中AHMT分光光度法。结果：酚醛树脂组中甲醛的检测结果为：第1次0.01~0.065（mg/m3）超标数0户;第2次：0.01~0.075（mg/m3）超标数0户;第3次：0.01~0.075（mg/m3）超标数0户;脲醛树脂组中甲醛的检测结果为：第1次：0.04~1.51（mg/m3）超标数5户;第2次：0.02~1.43（mg/m3）超标数5户;0.02~1.43（mg/m3）超标数4户;第3次：组间比较差异有统计学意义（F=8.22,P〈0.05）。结论：新装修居室内甲醛含量均存在不同程度的超标,主要是装修时所用材料的不同而引起室内甲醛浓度的差异。

Purpose： This work investigates the formaldehyde pollution level of different types of man-made polystyrene boards used for indoor-decoration, and analyzed the pollution sources. Method： According to different kinds of materials used for indoor-decoration, the 12 newly decorated families with 120 em2 were chosen as analyzed samples in Guiyang city, In this work, half of families used Phenol-formaldehyde resin based boards, and the others used boards made of urea formaldehyde resin. The method for detection of formaldehyde in residential areas is according to AHMT spectrometry meth- od of formaldehyde health detection standards method （GB/T16129-1995） in residential area. Results：The testing formal- dehyde contents in Phenol-formaldehyde boards ： first ： 0.01 - 0.065 （mg/m3） over standard ： 0 family ; second ： 0.01 - 0.075 （mg/m3） over standard ： 0 family ; third ： 0.01 ~ 0.075 （mg/m3） over standard ： 0 famly. The testing formaldehyde contents in urea formaldehyde resin： first： 0.04 - 1.51 （mg/m3） over standard： 5 families; second： 0.02 - 1.43 （mg/m3） over stan- dard： 4 families; third： statistical significanees of comparative deviation between two groups （F=8.22, P 〈 0.05 ）. Conclu- sions：The formaldehyde content in newly decorated room are all above standards at different degrees, which mainly arise from the used different kinds of decorate materials.