Abstract: Besed on the integration of the atmospheric advective and dispersion equation, a nonstatic box-model is built up which has memory of previous concentration and may be sensitive to nonadjacent boxes. The frame of the model could be used for prediction of air pollution on various scales. The airborne pollutant potential index (PPI), which has obvious physical meaning, is also defined to representthe ability to dilute the air pollutants by atmospheric advection and dispersion and/or to clean them out by dry and wet sedimentation. PPI could be used in the nonstatic box-model for prediction of the polluted potential in atmosphere. Furthermore, the prognostic formula and procedure for prediction of pollutant standard index (PSI) are given which depend flexibly on the monitored source strength and/or concentration distribution. Using the regular concentration data, the prediction procedure is tested and the results are acceptable.