HELCOM Contracting Parties have been monitoring the state of the Baltic
Sea jointly for decades. This extensive amount of data shows how the
marine environment has changed over time.
The HELCOM Initial Holistic Assessment of 2010
(PDF, 3.3 MB) provided the first ecosystem health assessment of the
entire Baltic Sea, also providing information on the associated benefits
and costs to society. The assessment was based on data for the years
2003-2007. A Second Holistic Assessment is now underway, and the results will be published in mid-2017.
2010 holistic assessment showed that none of the open-water basins are in a
good environmental state:
HELCOM monitors the trends of the marine environment and how the environment responds to management actions. The trends are followed under the four thematic sections of the Baltic Sea Action Plan: Biodiversity, Eutrophication, Hazardous substances and Maritime activities. Commonly agreed indicators are regularly updated to periodically produce thematic and holistic assessments.
Phosphorus inputs via water ways (Baltic proper). Peak year was 1981.
Baltic Sea Environment Proceedings No. 122: Ecosystem Health of the Baltic Sea - HELCOM Initial Holistic Assessment (2010)
HELCOM Monitoring and Assessment strategy