Abstract
The SAFE_AIR code (Canepa and Ratto [1]; Canepa et al. [2]; Canepa et al. [3]) simulates the transport and diffusion of airborne pollutants. This dispersion code is based on the advection of Gaussian segments and puffs driven by a 3D diagnostic wind model, able to deal with both non-stationary and nonhomogeneous conditions. SAFE_AIR is an evolution of the AVACTA II code (Zannetti [4]), a code «recommended» by the U.S. EPA. In this work, we applied SAFE_AIR to the region of Ho, Peru, where large SO2 emissions from a copper smelter plant affect the local air quality. The smelter is located in a complex coastal area. The field project (Wilkerson [5]) is based on a large set of meteorological and tracer (SF6) field data collected in the area of interest. Among the eighteen tracer experiments performed, under a variety of meteorological conditions and at different times of the day, we selected the most representative one and simulated it. The preliminary results presented here are encouraging.
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