Quality monitoring of marine coastal waters in Poland

A review of EU legislation and national rules applicable to the assessment of the quality of the marine waters of the Baltic Sea in Poland. A review of the procedures prescribed by law, highlighting some inconsistencies, and pointed to the importance of the innovative approach of the EU Water Directive towards assessing water quality, which now should be based primarily on assessing the health hydrobiont by limiting the amount recommended for the study of chemical indicators of water quality. It pays attention to the progression, and at the same time, retreat from this canon, which manifests itself primarily by gradually increasing the recommended number of chemical indicators of water quality that should undergo mandatory testing - on the road to increasing the number of priority contaminants placed in subsequent acts supplementing and modifying the EU Water Directive.