The human health depends on environmental conditions in which we live, There arc no uniform methods which can estimate the influence of the environment on the human health and the health hazard resulting from this exposure. There arc no parameters, which can describe condition of environment in relation to health effects either. The paper discusses the Environmental Health Indicators ( elaborated by WHO experts) which arc indicative of influence of the environment on the human health, so they point to and describe the relationship between health and environment. There have been shown practical use of Environmental Health Indicators to estimate water and sanitation quality in the Silesia region. There have been presented methods ot' results calculating and interpreting. Indicators were adapted to methods and procedures of data collection used in Poland.

Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) may be formed during combustion of Diesel and gasoline rud and may be produced in gas-phase reactions of polycyclic aromatic hydrocarbons (PAHs) with oxides of nitrogen. These compounds can form a significant fraction olthc mainly direct-acting mutagenie compounds present in extracts of ambient air particles. Using own analytical method of nitro-PAHs determination, concentrations or total PAHs, nitro- and dinitro-PAHs in urban and non-urban area of three cites of Upper Silesia in Poland were measured. The dependence between concentration of PAHs and nitro-pAHs in urban and non-urban area as well as their distribution depending on roadway distance were searched. The study showed a significant influence of road transport on the levels ofnitro-PAHs concentration.