Daugava

The second one in Top 10 Longest Rivers in Belarus that Toplist would like to introduce to you is Daugava. The Daugava River rises in Russia's Valdai Hills and flows through Belarus and Latvia into the Baltic Sea's Gulf of Riga. It rises near the Volga's headwaters. It is 1,020 km (630 mi) long, with 325 km (202 mi) in Russia. It is a westward-flowing river that forms a large curve to the south, passing through northern Belarus.

Riga, Latvia's capital, spans the estuary four times, lying on both banks, with the city center 15 kilometers (9.3 miles) from the mouth and serving as a significant port. The river's total catchment area is 87,900 km2 (33,900 sq mi), of which 33,150 km2 (12,800 sq mi) is within Belarus.

The river's environment began to deteriorate during the era of Soviet collective agriculture (which produced significant adverse water pollution runoff) and a wave of hydroelectric power projects. The Daugava River is considered moderately polluted in Belarus, with the main sources being treated wastewater, fish farming, and agricultural chemical runoff (e.g. herbicides, pesticides, nitrate and phosphate).

Length: 1,020 km (630 mi)