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Coastal eutrophication: Total Nitrogen (TN) (kilograms of nitrogen from algae biomass per sq. km. of river basin area per day) by country

Countries reporting
62
Highest
359,114
Large Marine Ecosystem: Yellow Sea
Lowest
0.2293
Large Marine Ecosystem: Iceland Shelf and Sea
Median
25,421
Years covered
16
2000–2015
Data points
1,056

What the numbers show

Coastal eutrophication: Total Nitrogen (TN) (kilograms of nitrogen from algae biomass per sq. km. of river basin area per day) is currently reported for 62 countries. The highest value is 359,114 in Large Marine Ecosystem: Yellow Sea; the lowest is 0.2293 in Large Marine Ecosystem: Iceland Shelf and Sea.

The median across all reporting countries is 25,421, and the mean is 54,254.

Over the past decade 35 countries rose and 27 fell. The largest increase was in Large Marine Ecosystem: Northeast Australian Shelf (up 40.7%), and the largest decrease in Large Marine Ecosystem: East Siberian Sea (down 24.8%).

Coastal eutrophication: Total Nitrogen (TN) (kilograms of nitrogen): full country ranking

#Country LatestYear 10-year changeTrend
1 Large Marine Ecosystem: Yellow Sea 359,114 2015 down 0.2% rising
2 Large Marine Ecosystem: North Brazil Shelf 342,503 2015 up 4.1% flat
3 Large Marine Ecosystem: Bay of Bengal 339,759 2015 up 4.4% flat
4 Large Marine Ecosystem: South China Sea 335,916 2015 up 7.3% rising
5 Large Marine Ecosystem: Mediterranean Sea 172,799 2015 up 5.3% rising
6 Large Marine Ecosystem: Indonesian Sea 121,232 2015 up 17.3% rising
7 Large Marine Ecosystem: Arabian Sea 105,040 2015 down 5.4% rising
8 Large Marine Ecosystem: Patagonian Shelf 95,747 2015 up 3.2% rising
9 Large Marine Ecosystem: Guinea Current 89,599 2015 up 7.7% rising
10 Large Marine Ecosystem: Black Sea 89,209 2015 down 9.5% flat
11 Large Marine Ecosystem: East China Sea 81,970 2015 down 3.4% rising
12 Large Marine Ecosystem: North Sea 72,208 2015 down 13.5% falling
13 Large Marine Ecosystem: Kuroshio Current 71,755 2015 down 0.7% falling
14 Large Marine Ecosystem: Celtic-Biscay Shelf 71,725 2015 up 5.0% falling
15 Large Marine Ecosystem: North Australian Shelf 66,841 2015 up 16.9% rising
16 Large Marine Ecosystem: Gulf of Mexico 60,537 2015 down 12.0% flat
17 Large Marine Ecosystem: Sulu-Celebes Sea 57,922 2015 up 10.4% flat
18 Large Marine Ecosystem: East Brazil Shelf 57,440 2015 up 7.0% rising
19 Large Marine Ecosystem: Agulhas Current 49,496 2015 up 6.1% falling
20 Large Marine Ecosystem: Northeast U.S. Continental Shelf 48,751 2015 down 5.5% flat
21 Large Marine Ecosystem: Sea of Japan 46,449 2015 down 5.1% falling
22 Large Marine Ecosystem: Gulf of Thailand 45,602 2015 up 23.1% rising
23 Large Marine Ecosystem: Sea of Okhotsk 42,857 2015 up 15.3% rising
24 Large Marine Ecosystem: Baltic Sea 40,938 2015 up 10.1% flat
25 Large Marine Ecosystem: Humboldt Current 40,374 2015 up 7.1% flat
26 Large Marine Ecosystem: Benguela Current 36,624 2015 up 18.5% flat
27 Large Marine Ecosystem: Kara Sea 36,357 2015 up 3.1% falling
28 Large Marine Ecosystem: West Bering Sea 32,188 2015 up 7.5% rising
29 Large Marine Ecosystem: South Brazil Shelf 27,752 2015 up 5.3% rising
30 Large Marine Ecosystem: Northeast Australian Shelf 27,127 2015 up 40.7% rising
31 Large Marine Ecosystem: California Current 26,128 2015 down 8.6% falling
32 Large Marine Ecosystem: Hudson Bay Complex 24,714 2015 down 6.2% flat
33 Large Marine Ecosystem: Canary Current 17,185 2015 up 9.7% rising
34 Large Marine Ecosystem: Northwest Australian Shelf 16,875 2015 up 9.4% flat
35 Large Marine Ecosystem: Insular Pacific-Hawaiian 16,684 2015 up 2.5% rising
36 Large Marine Ecosystem: New Zealand Shelf 16,406 2015 down 1.1% flat
37 Large Marine Ecosystem: Iberian Coastal 16,196 2015 up 28.7% falling
38 Large Marine Ecosystem: Gulf of Alaska 14,788 2015 down 9.4% flat
39 Large Marine Ecosystem: Scotian Shelf 14,776 2015 up 8.3% rising
40 Large Marine Ecosystem: Somali Coastal Current 13,019 2015 up 7.7% falling
41 Large Marine Ecosystem: Southeast U.S. Continental Shelf 12,146 2015 down 13.8% falling
42 Large Marine Ecosystem: Aleutian Islands 11,966 2015 down 4.8% rising
43 Large Marine Ecosystem: Laptev Sea 11,966 2015 down 1.0% flat
44 Large Marine Ecosystem: Oyashio Current 11,649 2015 up 28.7% rising
45 Large Marine Ecosystem: Barents Sea 11,034 2015 up 1.9% rising
46 Large Marine Ecosystem: Southeast Australian Shelf 8,926 2015 down 3.9% falling
47 Large Marine Ecosystem: Labrador - Newfoundland 7,214 2015 up 6.5% flat
48 Large Marine Ecosystem: East Bering Sea 7,179 2015 down 4.6% rising
49 Large Marine Ecosystem: Gulf of California 6,480 2015 up 3.0% rising
50 Large Marine Ecosystem: East Central Australian Shelf 5,359 2015 up 17.7% rising
51 Large Marine Ecosystem: South West Australian Shelf 5,271 2015 down 20.1% falling
52 Large Marine Ecosystem: Red Sea 4,961 2015 down 4.9% rising
53 Large Marine Ecosystem: Norwegian Sea 4,166 2015 down 15.3% flat
54 Large Marine Ecosystem: East Siberian Sea 3,369 2015 down 24.8% falling
55 Large Marine Ecosystem: Greenland Sea 2,978 2015 up 3.4% rising
56 Large Marine Ecosystem: Canadian High Arctic - North Greenland 1,723 2015 down 7.4% falling
57 Large Marine Ecosystem: West Central Australian Shelf 1,552 2015 down 19.7% falling
58 Large Marine Ecosystem: Beaufort Sea 1,537 2015 down 5.6% falling
59 Large Marine Ecosystem: Northern Bering - Chukchi Seas 1,416 2015 up 1.5% flat
60 Large Marine Ecosystem: Faroe Plateau 268.53 2015 up 3.0% rising
61 Large Marine Ecosystem: Canadian Eastern Arctic - West Greenland 3.46 2015 down 0.7% flat
62 Large Marine Ecosystem: Iceland Shelf and Sea 0.2293 2015 down 0.2% flat

Regions and income groups

Aggregates are excluded from the country ranking above so that a region can never outrank a country.

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Coastal eutrophication: Total Nitrogen (TN) (kilograms of nitrogen) by country. Statizoid, drawing on United Nations Statistics Division, SDG Global Database. Retrieved 30 August 2026, from https://development-goals.statizoid.com/stat/coastal-eutrophication-total-nitrogen-tn-kilograms-of-nitrogen-from-algae-biomass-per-sq/

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About this data

Indicator
Coastal eutrophication: Total Nitrogen (TN) (kilograms of nitrogen from algae biomass per sq. km. of river basin area per day)
Source
United Nations Statistics Division, SDG Global Database
Licence
UN SDG Global Database (open, attribution requested)
Coverage
66 places, 1,056 data points, 2000–2015
Last refreshed