Buenos Aires combines a high number of inhabitants and a variety of sources of air pollution. The mobile ones have the greater contribution, followed by the power generation plants and industries (Arkouli et al. 2010) and products of remote and near biomass burning (Gassmann and Ulke 2008, Ulke 2009). The nature of aerosol pollution, in terms of lifetime, relationship with sources and transformation processes in which they can participate, and their effects, requires on-going research
