[Changes in the physical environmental factors in modern buildings related to the use of polymeric construction materials].

The polymeric materials are used on a large scale in building and furnishing of modern edifices. However, in spite of the doubtless positive effect there are a number of important hygienic problems, related to the ability of these new materials, at unregulated and not controlled usage, to cause unfavourable changes in the parameters of the environment and through them to affect the health and spirits of the inhabitants. The basic hygienic problems in the application of polymeric building materials /PBM/ are derived from the elimination of harmful chemical substances from the latter. Besides of great importance are the changes in the physical parameters of the environment in the premises of the edifices, arising from the accumulation of static electricity on the surface of the PBM, the aggravated thermal technical characteristics of some materials, etc. The results of the hygiene investigations for thermal protective properties of different types of PBM, used as floor covering and their effect on the thermal metabolic processes and colds of the inhabitants are pointed out. The biological effect of static electricity and the dependence of the electrification of the materials on the composition and the physico-chemical nature of the materials and some microclimatic parameters and other exploitation conditions are clarified. Recommendations are given for the preliminary hygienic control of these materials, in order to avoid the aggravation of the parameters of the environment in the modern buildings.