A STUDY OF SO2 DISPERSION AROUND A THERMOELECTRIC POWER PLANT IN THE SOUTH OF BRAZIL

摘要

This paper is a summary of the experimental design, observational domain, sampling strategy of the Candiota field experiments. A suite of five meteorological experiments of increasing complexity and realism was conducted during different seasons The philosophy followed in these experiments was to describe the structure of the Planetary Boundary Layer in the south of Brazil and its implication to study the dispersion of pollutants emitted by the Thermoelectric Power Plant located in the region. For the purpose of models evaluation it was presented and compared results obtained with an analytical and with a numerical dispersion models. The disagreement between experimental and modeled results is due to models assumptions and simplifications. However, for best evaluations it is necessary to have more comprehensive data sets and longer time series of pollutant concentrations with higher time and space resolution. Finally it should be stressed that the Candiota site consists of an ideal local to validate models through simultaneously meteorological and concentrations measurements.