Procedures for assessment of eutrophication status including evaluation of land-based sources of nutrients for the NOWPAP region (the NOWPAP Common Procedure 2015 Revised Edition) have been developed (CEARAC Project).
To assess the eutrophication status of the entire NOWPAP sea area, trial application of the Screening procedure of the NOWPAP Common Procedure 2013 Revised Edition to the entire NOWPAP region was conducted. When implementing this activity, the required parameters in the procedure were reviewed, and one of them (Nutrients input and their residence time) was changed to Long-term Trend in Chemical Oxygen Demand (COD) or Total Organic Carbon (TOC) symptoms.