HELCOM publishes diverse reports and brochures as well as audiovisual materials about the Baltic Sea and its environment. The main series is the Baltic Sea Environment Proceedings (BSEP).
- About us
- HELCOM at work
- Ministerial meetings
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- Home
- Baltic Sea trends
- Holistic Assessments
- Biodiversity
- Eutrophication
- Hazardous Substances
- Maritime
- Environment Fact Sheets
- Environment Fact Sheets Procedure
- Biodiversity
- Abundance and Distribution of Marenzelleria Species
- Abundance and Distribution of Round Goby
- Abundance and Distribution of the Zebra Mussel
- Biopollution Level Index
- Observed Non-Indegenous and Cryptogenic Species in the Baltic Sea
- Population Development of Great Cormorant
- Population Development of Sandwich Tern
- Population Development of Southern Dunlin
- Population Development of White-Tailed Sea Eagle
- Eutrophication
- Waterborne nitrogen and phosphorous inputs and water flow to the Baltic Sea 1995-2017
- Unusual Phytoplankton Event
- Bacterioplankton Growth
- Chlorophyll-A Concentrations, Temporal Variations and Regional Differences from Satellite Remote Sensing
- Cyanobacteria Biomass, 1990-2018
- Cyanobacteria Bloom Index
- Cyanobacterial Blooms in the Baltic Sea
- Impacts of Invasive Phytoplankton Species
- Atmospheric Nitrogen Depositions to the Sea
- Nitrogen Emissions to the Air in the Baltic Sea
- Phytoplankton Community Composition
- Shifts in the Summer Phytoplankton Communities in 1992-2006
- Spatial Distribution of the Winter Nutrient Pool
- Hazardous Substances
- Depositing of Dredged Material in the Baltic Sea in 2017
- Atmospheric Deposition of Benzo(a)pyrene
- Atmospheric Deposition of Heavy Metals
- Atmospheric Deposition of PCB-153
- Atmospheric Deposition of PCDD/FS
- Atmospheric Emissions of Benzo(a)pyrene
- Atmospheric Emissions of Heavy Metals
- Atmospheric Emissions of PCB-153 in the Baltic Sea Region
- Atmospheric Emissions of PCDD/FS
- Cesium-137 in Baltic Sea Sediments
- Contamints in Herring
- Illegal Discharges of Oil in the Baltic Sea
- Liquid Discharges of Radioactive Substances
- Heavy Metals in Water
- Hydrography
- Maritime Activities
- Data & Maps
- Pollution Load Compilations
- Indicators
- Action areas
- Agriculture
- Fisheries
- Industrial & Municipal Releases
- Marine Litter & Underwater Noise
- Marine Protected Areas
- Maritime Spatial Planning
- Monitoring and Assessment
- Monitoring and Assessment Strategy
- Monitoring Manual
- Benthic Community Species Distribution and Abundance
- Benthic Physical Loss and Damage
- Biological Effects of Contaminants
- Birds
- Concentrations of Contaminants
- Contaminants in Seafood
- Fish, Fisheries and Shellfish
- Hydrochemistry
- Hydrography
- Inputs
- Introduction
- Litter
- Mammals
- Non-Indigenous Species
- Phytoplankton
- Seabed Habitat Distribution and Extent
- Underwater Noise
- Zooplankton
- Monitoring Guidelines
- Research Vessels
- Publications
- Response to Spills
- Species and Biotopes
- Shipping
- Baltic Sea Action Plan
- Baltic birdlife supported by international coordination
- Behind the scenes – Jaakko Henttonen
Baltic Marine Environment
Protection Commission