4.9 |
Baltic Sea sub-basin/river | Runoff | NO3-N | total-N | PO4-P | total-P |
109 m3 yr-1 | tonnes yr-1 | tonnes yr-1 | t yr-1 | tonnes yr-1 | |
Gulf of Bothnia | |||||
Kemijoki | 18.9 | 1 100 | 6 900 | 140 | 420 |
Lule R. | 16.7 | 560 | 3 300 | 40 | 180 |
Ångermanälven R. | 17.1 | 890 | 4 650 | 35 | 200 |
Indalsälven R. | 15.3 | 1 390 | 4 540 | 25 | 140 |
Other monitored rivers | 11.5 | 15 980 | 60 250 | 1020 | 3250 |
Non-monitored rivers | 24.3 | 7 960 | 20 750 | 610 | 1 220 |
Subtotal | 103.8 | 27 880 | 100 390 | 1870 | 5 400 |
Gulf of Finland | |||||
Neva R. | 81.7 | 21 260 | 55 590 | 1 200 | 3 210 |
Narva R | 14.3 | 4 010 | 26 400 | 290 | 750 |
Other monitored rivers | 18.5 | 11 830 | 17 110 | 550 | 660 |
Non-monitored rivers | 7.7 | 8 620 | 26 870 | 560 | 1 510 |
Subtotal | 122.2 | 45 720 | 125 970 | 2 600 | 6 130 |
Gulf of Riga | |||||
Daugava R. | 23.3 | 28 680 | 70 130 | 970 | 1 330 |
Other monitored rivers | 9.7 | 21 480 | 35 940 | 450 | 670 |
Non-monitored rivers | 3.3 | 4 120 | 7 160 | 90 | 240 |
Subtotal | 36.3 | 54 280 | 113 230 | 1 510 | 2 240 |
Baltic proper | |||||
Neman R. | 20.5 | 31 650 | 58 3401 | 4 140 | 5 410 |
Vistula R. | 32.4 | 59 280 | 119 080 | 3 570 | 5 510 |
Oder R. | 16.3 | 41 900 | 71 430 | 2 510 | 6 630 |
Other monitored rivers | 19.9 | 18 760 | 36 430 | 900 | 1 340 |
Non-monitored rivers | 23.9 | 41 410 | 77 740 | 2 100 | 4 300 |
Subtotal | 113.0 | 193 000 | 363 020 | 13 220 | 23 190 |
Western Baltic | |||||
Göta R. | 18.0 | 10 080 | 16 250 | 60 | 300 |
Other monitored rivers | 11.4 | 47 620 | 57 210 | 880 | 1 860 |
Non-monitored rivers | 8.0 | 38 980 | 49 830 | 1 110 | 2 040 |
Subtotal | 37.4 | 96 680 | 123 290 | 2 050 | 4 200 |
Total Baltic Sea | 412.7 | 417 560 | 825 900 | 21 250 | 41 160 |
4.9 |