Symposium on the Chemical Aspects of Air Pollution, Cortina d'Ampezzo, Italy, 9–10 July 1969
The nature of particulate matter
        
        Survey of the distribution of trace substances in pure and polluted atmospheres
        
        Le problème des seuils de nocivité et des limites tolérables pour les polluants de l'air des villes et des environnement industriels
        
        Mass spectrometric and chromatographic techniques for determination of polycyclic compounds
        
        Correlation of the blackness index of high volume air samples with the polycyclic hydrocarbon concentrations in urban air
        
        Comparative study of methods for the determination of airborne fluorides
        
        The granulometric classification of aerosols using a new type of cascade, impactor (four-stage aerosol differential sampler)
        
        Modelling and similarity relations of physical and chemical processes
        
        The rapid measurement of polycyclic hydrocarbons in air by microsublimation
        
        Polycyclic aromatic hydrocarbons from gasoline engine and liquified petroleum gas engine exhausts
        
        Evaluation of aerosol pollution using a three device system
        
        