An ambitious target has been understood when promoting this meeting: to involve technicians, scientists, public administrators, associations and institutions in a debate on the role of aerosols in atmospheric pollution, the actions which should be adopted and the limitations proposed by the actual regulations. Although more than two decades have been dedicated to these subjects in an extremely abundant literature and in several meetings, the distance of the clear understandings and the little appreciations of the proposed actions seem vanify any optimistic forecast for the next future. Therefore the Italian Association of Chemical Engineering (AIDIC) sponsored by the major Industries, Universities and Institutions invite all the specialists to a three days conference where the above theme will be put under discussion from all the possible different perspectives.

The official language of the conference is English.