Eutrophication

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)[350KB]

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.

Application of the NOWPAP Common Procedure for Eutrophication Assessment in Selected Sea Areas in the NOWPAP Region [1,361KB]

This report introduces re-assessment of the eutrophication status in some selected sea areas in the NOWPAP region, using the NOWPAP Common Procedure 2013 Revised Edition (see Annex C), which includes two steps: Screening procedure to detect evidence of eutrophication with the minimum required parameters and Comprehensive procedure to assess the eutrophication status in detail.

Case Study Reports on Assessment of Eutrophication Status in selected sea areas:
Jiaozhou Bay, China [888KB] /  North Kyushu Sea Area, Japan [1,393KB] / Toyama Bay, Japan [503KB] / Jinhae Bay, Republic of Korea [726KB] /  Peter the Great Bay, Russia [9,995KB]

Using the NOWPAP Common Procedure 2013 Revised Edition, case studies to assess the eutrophication status were conducted in some selected sea areas in the NOWPAP member states.

Procedures for assessment of eutrophication status including evaluation of land-based sources of nutrients for the NOWPAP region (the NOWPAP Common Procedure 2013 Revised Edition)[659KB]

Based on the lessons learned from the case studies conducted in the 2010-2011 biennium, the NOWPAP Common Procedure (2009) was revised.

Integrated Report on Eutrophication Assessment in Selected Sea Areas in the NOWPAP Region: Evaluation of the NOWPAP Common Procedure[9,924KB]

NOWPAP Common Procedure (2009) was evaluated through case studies in the NOWPAP member states. Eutrophication status assessed with the NOWPAP Common Procedure is introduced in the report.

Case Study Reports on Assessment of Eutrophication Status in selected sea areas:
Changjiang (Yangtze) River Estuary and its Adjacent Area, China[520KB] / Northwest Kyushu sea area, Japan[2,381KB] / Toyama Bay, Japan[832KB] / Jinhae Bay, Korea[2,577KB] / Peter the Great Bay, Russia[6,115KB]

CEARAC assessed the eutrophication status based on the NOWPAP Common Procedure (2009) in selected sea areas in each NOWPAP member state, where water quality deterioration and red tides caused by eutrophication had been reported.

Procedures for assessment of eutrophication status including evaluation of land-based sources of nutrients for the NOWPAP region [404KB]

In order to assess the eutrophication status in the NOWPAP region, CEARAC developed Procedures for assessment of eutrophication status including evaluation of land-based sources of nutrients for the NOWPAP region (NOWPAP Common Procedure).