Method for predicting concentration of pollutants in indoor air after house decoration

The invention discloses a method for predicting the concentration of pollutants in indoor air after house decoration. The method comprises the steps that the hottest monthly average temperature and the highest monthly average relative humidity of a house decoration site are investigated; according to the decoration scheme, determining the type n of the plate and the usable area Si of the plate; measuring the ventilation frequency N, the formaldehyde emission of the plate, the indoor air formaldehyde background concentration and the indoor space volume V; calculating the limit formaldehyde emission delta i of the plate according to the ventilation times; determining the indoor air limit formaldehyde background concentration C0; and predicting according to a formula (1) to obtain the pollutant concentration in the indoor air after decoration. According to the method, the concentration of pollutants in indoor air using various plates is designed or predicted in the home decoration design stage, the problem that