Increasing the knowledge of the Baltic Sea

CHALLENGES OF THE BALTIC SEA

Eutrophication

The most obvious challenge of the Baltic Sea is eutrophication. Overload of nutrients (nitrogen and phosphorous) results in massive blooms of blue-green algae.

Once the process caused by excessive eutrophication has begun, it is hard to curb.

The load of nutrients entering aquatic ecosystems can be limited by treating wastewater, improving agricultural methods and protecting remaining wetlands. However, nutrients accumulated over many years in the sea bottom are difficult to remove and continue to feed the growth of plants and blue-green algae.

Hazardous substances

Man-made synthetic hazardous substances like phthalates and perfluorinated compounds do not occur naturally and therefore become pollutants when released into the environment. These enter aquatic ecosystems through e.g. wastewater treatment plants, which are not designed to remove hazardous substances.

In addition to factories and enterprises producing or using these substances, the sources of hazardous substances include daily used consumer products e.g. plastic products (PVC), non-stick (Teflon) pans, ski waxes, flame retardants in electrical devices, etc.

Hazardous substances bio accumulate in the food chain, and may finally end up at our dinner plate. No country can solve this issue alone. Let’s Rock together for a healthy future of our Baltic Sea – we can make a difference together.

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