This paper deals with the investigation of impact of road salting materials (deicing salts) to vegetation close to roads. Extensive survey of the present knowledge is submitted in the first part. In the experimental part concentrations of undesirable contaminants in the salting materials and chloride ions in the soil samples have bean partcularly observed. Amounts of heavy metals and other contaminants were very low on the roadsides, concentration pf chlorides rapidly decreased upright to the road.