Summary
The results presented on this paper may be considered as complementary to the ones published a two previous papers about the natural atmospheric aerosol of the Amazon Basin, and the effects, on these physical-chemical systems of the large scale brushfires carried out from time to time on that region. The experiments have been performed in August-September, 1980, simultaneously to the ones of the "Projeto Queimadas — 1980" promoted by the National Center for Atmospheric Research from the U.S.A. The new results here in presented are size distribution concentration data as logprobability curves for the detected trace-elements from these curves, by introducing a new technique, we were able to derived the corresponding log-normal curves. These last curves can be used conveniently to characterize the atmospheric aerosol system which is under investigation.