1Introduction

Abstract

In this paper, two different approaches, namely of neuro-fuzzy and fuzzy types, are considered for modelling photochemical pollution in two different areas. One of the main aims of the considered approaches is the possibility to extract knowledge from historical time-series thus allowing a deeper understanding of the physical phenomena involved. The city of Brescia is located in the Po Valley in Northern Italy and is characterised by high industrial, urban and traffic emissions and continental climate. The Siracusa industrial area is located in the eastern coast of Sicily, with a climate typical of Southern Mediterranean areas.