Investigation on formaldehyde pollution in indoorair of new decorated house

  Objective   To investigate the status of formaldehyde pollution in in doorairof the decorated houses, and to explore its effect factors.

  Methods   66 apartments decorated from one month to almost one yearand 28 roughcast apartments were selected and the concentration of formaldehyde were determined by portable readability Digital formaldehyde analyzing machine.

  Results   In the same period after decorating, there was significant difference of formaldehyde concentration between bigh temperature period and lowtemperature period(P < 0.05).Formaldehyde concentration of high temperature period was 5 times as much as that of the lowtemperature conditions.Furniture was also the source of formaldehyde pollution.

  Conclusion   The main factors influencing formaldehyde content in indoorair included the quality and the amount of decorating material, time after decoration and indoor temperature.Good airiness was in favorof formaldehyde releasing.