EN
The article presents part of the studies on the effect of industrial emissions on — reaction of falling waters — quantity of sulphur and fluor for one unit of soil — salubrity of epiphitic lichens (Hypogymnia species) used as bioindicators — number of sulphuric and nitrificating bacteria in soil. On the basis of the observations made one can note a change in the reaction of falling water, increased quantities of sulphate sulphur and fluor in the region affected by the Police Chemical Works. This is confirmed also by a reaction of bioindicators and ąn increased number of sulphur and nitrificating bacteria that speed up a degradation of monuments of architecture and enable their occupation by other non-neutral microorganismus.