Modeling and Characterization of Air Pollution: Perspectives and Recent Developments with a focus on the Campania Region (Southern Italy)

The wide availability of data on air pollutant emissions, the knowledge already achieved on the set of chemical and photochemical reactions in the troposphere, the ability to access real time weather conditions at the local scale that determine the transport and transformation of gases and aerosol, now make it possible to obtain credible and reliable predictions, retrospective analyses and/or future projections on air quality. Political institutions and the scientific community are strongly committed to achieve these objectives.During the last years, a sensible improvement has been achieved both because of the better analysis of physical/chemical phenomena, and software/hardware architecture advancements. Nowadays, it is not uncommon to provide, also in real-time, weather and chemical forecasts at very high resolutions (less than 1 km in the horizontal directions). Some of the achievements and future perspectives on the development scenarios are given, with focus on the results of the Campania region (Southern Italy).