The general review of influence of the pollutants on polymers has been presented by Jellinek et al. [1]. Therein the characterization of reactivity of polymeric materials toward aggressive gases is given. The various polymers were used as films of 20 μ thickness. The thickness is enough small to exclude in most cases the diffusion as the determining factor of the pollutant action. The films were investigated under different conditions: 1) the pollutant action; 2) the oxygen action; 3) UV light action; 4) UV light and oxygen; 5) UV light, oxygen and pollutants. For NO2, the exposure of samples was usually realized under the pressure of 15 mm.