When this reaction occurs, oxygen concentrations are considered negative
Over time, there has been a steady increase in the area affected by hydrogen sulphide in the East and West Gotland Basins, and the outer Gulf of Finland. Water from the Gulf of Finland does not enter into the Gulf of Bothnia. As a result, despite its depth, it remains well oxygenated, even during autumn.
Decrease your CO2 emissions and keep your electricity bills low by making the most of natural light. Think about choosing pale-coloured walls, ceilings and floors, as well as mirrors, to reflect the daylight.
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