WOUIRG PARTY I: AlIALYSIS or POLLUTAIITS Chairman: A. LIBERTI (CNR - Roma, I) Summary by the Chairman 3 Detection of gaseous nitric acid by OH (A~X) - fluorescence gen- erated by ArF-laser irradiation Th. PAPENBROCK and F. STUHL 5 Preparation of standard atmospheres of nitrogen acid compounds: the N02 permeation tube I. ALLEGRINI, P. BUTTINI, V. DI PALO and M. POSSANZINI 15 Automated denuder systems J. SLANINA, A. M. VAN WENSVEEN, C. A. M. SCHOONEBEEK and P. I. VOORS 25 A battery-powered light-weight ozone analyzer for use in the troposphere and stratosphere S. SARAND, W. SPEUSER and U....

In October 1979 the First European Symposium on Physico-Chemical Behaviour of Atmospheric Pollutants was held In Ispra (Italy); 83 scientists attended the conference contributing 44 papers. Ten years later, the Fifth European Symposium on Physico-Chemical Behaviour of Atmospheric Pollutants, organized as for the previous Symposia In the framework of the Concerted Action *COST 611, was held in Varese (Italy) from 25 to 28 September 1989. This Volume contains the oral papers and the posters presented at this Symposium. Participation at this Conference Is more than doubled of that In 1979 In...