Information assembled in the System of monitoring the environmental impact on population health are obtained by a routine procedure during standard monito- ring activities since 1994. The system comprises six sub-systems: health consequ- ences and risk of a polluted atmosphere, quality of drinking water, noise, dietary exposure, exposure to toxic contaminants in the environment (biological monito- ring) and monitoring of the health status and evaluation of selected indicators of demographic and health statistics.The results are, due to their comprehensive character, a basis for objective information addressed to other European countri- es and the whole world from the aspect of commercial and cultural contacts. They document the health status of our population and contamination levels of the investigated environmental components. The limit values were transgressed during the existence of the of Monitoring system only exceptionally and only in some places. These situations are usually described as non-systematic changes. From evaluation of the exposure of the population to the contaminants monitored ensues that the exposure limits are recorded only to a limited extent in the monitoring network. It may be stated that significant increases of concentration of contaminants in some cities exist but only as an exceptional phenomenon. On the other hand, it is not possible to record their steady and systematic decline within the Monitoring system.

        Key words: health status - environment - biological monitoring - system of moni-