Tóm tắt nội dung:   Atmospheric Diffusion  Modeling for PSD  Permit Regulations 4.1 INTRODUCTION — METEOROLOGICAL BACKGROUND Reduction of ground-level concentrations from a point source can be accomplished by elevation of the point of emission above the ground level. The chimney has long been used to accomplish the task of getting the smoke from fires out of the house and above the inhabitants’ heads. Unfortunately meteorological conditions have not cooperated fully, and, thus, the smoke...