Water

Eutrophication
Eutrophication of rivers
Indicators
River basins
Eutrophication in the Gulf of Rīga
Indicators

Transboundary water pollution

Drinking water quality

Water resources

Total nitrogen discharge from point sources in the Daugava basin and mean yearly total nitrogen concentrations in the lower Daugava, 1991 - 2000
Source: Latvian Environment Agency (discharge)
Latvian Hydrometeorological Agency (concentration)