More than 10 years ago, EU defined guidelines for surface water quality with the 2000/60/EC Directive. This is the most important water legislation and acts for both Member states and candidate countries. The aim of this paper is to observe the variation of water quality in Romania - Hungary cross border area, during four seasons. Samples have been taken from five points of Romanian and Hungarian part and the following indicators have been determinate: pH, nitrates, nitrites, phosphorus, Ca, Mg. Fe, Cr, Zn, Mn

water, metals, nitrates, nitrites, phosphorus

Presentation: oral