Włocławek Reservoir

Włocławek Reservoir (Zbiornik Włocławski) is a water body in the Middle Vistula flow that appeared in 1970 after building of the dam in Włocławek. The length of the reservoir is 58 km from Włocławek to Płock, average width is 1.2 km. It is the biggest reservoir in Poland. Due to the significant amount of organic matter in the tank (approx. 11.5% of the dry weight of sediment), it emits approx. 400 mg of methane per area of 1 m2 (which is approx. 27% of the total amount of gases emitted from the sediment of average 3114 ml m−2 d−1). For this reason, is considered an important source of greenhouse gases emission.

Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).