In 1969 the North Atlantic Treaty Organization (NATO) cstablishcd thc
Committee on Challenges of Modern Society (CCMS). The subject of air
pollution was from the thc very beginning one of the priority problems
umier deliberation within the tJ-amcwork of various pi- lot studies
undertaken by this committee. The organization of a yearly conference
dealing with air pollution modelling and its application has become one
of the main activities within thc pilot study rclating to air pollution.
Pleasc see the listing on the next page for completed NATO/CCMS Pilot
Studies and the International Technical Meetings (ITM) on Air Pollution
Modelling and Its Application. This volume contains the papers at the
22ND lTM, being held in Clermont-Ferrand, France during June 2 -6,1997.
It was attended by 152 participants representing 33 countries. This lTM
wasjointly organized by the Ris0 National Laboratory of Denmark (pilot
country): the Laboratoire Associe de Meteorologic Physique, associated
with the Centre National de la Recherche Scientifique, the Universite
Blaise Pascal. and the Observatoire de Physique du Globe de
Clermont-Ferrand, France (host country). We wish to express our
gratitude to the sponsors that made this conference possible. In
addition to tinancial support from NATO/CCMS, the conference received
contributions from Centre National de Recherche Scientitique,
Observatoire de Physique du Globe de Clermont-Ferrand, Universite Blaise
Pascal, Electricite de France, lnstitut Francais du Pe- trole, Conscil
Regional d'Auvergne, Conseil General du Puy de DC1I11e, Mairie de
Clermont- Ferrand, SATCAR Semaine des arts techniques et culture de
l'automobile et de la route.
