The scientific expedition to the Nord Stream leak from the University of Gothenburg has arrived back home. The researchers discovered that the methane levels near the leak were about 1,000 times higher than normal, but it’s too early to draw any conclusions from that discovery. The researchers have brought back heaps of samples to analyse. The methane gas leak was discovered on 26 September, and since then methane gas has continued to leak into the water. the methane levels were up to 1,000 times higher than normal. Methane gas is dissolved in water, but when it reaches the surface, it transforms back to gas form and is emitted into the atmosphere.
— source University of Gothenburg | Oct 7, 2022