Subfield · Water Science and Technology
Top Countries in Water Science and Technology Research
China ranks first in 2022–2025, out of 62 ranked countries.
Composite score: field-normalised excellence, output and total citations weighted 50 / 30 / 20, each as a percentile so no single heavy-tailed measure dominates. Floor: 100 fractional works in this field.
Ranked by research quality, 2022–2025
| # | Country | Score | Top-10% rate | Works | Citations | All time |
|---|---|---|---|---|---|---|
| 1 | China | 100.0 | 22.3% | 30k | 407k | #1 |
| 2 | India | 83.2 | 15.5% | 10k | 79k | #3 |
| 3 | United States | 73.4 | 14.8% | 7.5k | 65k | #2 |
| 4 | Saudi Arabia | 66.4 | 27.0% | 1.4k | 21k | #16 |
| 5 | Australia | 61.0 | 22.0% | 1.4k | 20k | #5 |
| 6 | Iran | 56.6 | 18.4% | 2.6k | 29k | #7 |
| 7 | Egypt | 52.9 | 21.7% | 1.6k | 21k | #21 |
| 8 | United Kingdom | 49.6 | 18.7% | 1.5k | 16k | #4 |
| 9 | ?? | 46.8 | 16.4% | 1.3k | 13k | #23 |
| 10 | Malaysia | 44.2 | 13.2% | 1.7k | 15k | #13 |
| 11 | Italy | 41.9 | 19.2% | 1.2k | 12k | #14 |
| 12 | Germany | 39.8 | 15.5% | 1.5k | 14k | #8 |
| 13 | South Korea | 37.9 | 18.8% | 1.6k | 19k | #15 |
| 14 | France | 36.1 | 13.5% | 1.4k | 11k | #9 |
| 15 | Türkiye | 34.4 | 12.4% | 1.9k | 14k | #11 |
| 16 | Pakistan | 32.8 | 17.7% | 1k | 11k | #25 |
| 17 | Canada | 31.4 | 16.7% | 1.5k | 15k | #6 |
| 18 | Nigeria | 30.0 | 8.0% | 1.6k | 8.4k | #27 |
| 19 | Morocco | 28.7 | 24.8% | 737 | 8.2k | #36 |
| 20 | Brazil | 27.4 | 3.0% | 7.3k | 17k | #17 |
| 21 | Indonesia | 26.2 | 2.4% | 6.3k | 9.9k | #30 |
| 22 | Poland | 25.1 | 11.2% | 1.3k | 9.1k | #22 |
| 23 | Spain | 24.0 | 13.9% | 1.5k | 13k | #10 |
| 24 | Iraq | 23.0 | 9.7% | 1.3k | 8.3k | #33 |
| 25 | South Africa | 22.0 | 16.9% | 838 | 8.6k | #28 |
| 26 | Bangladesh | 21.1 | 18.5% | 786 | 7.2k | #35 |
| 27 | Japan | 20.1 | 10.3% | 1.4k | 9.7k | #20 |
| 28 | Netherlands | 19.3 | 21.0% | 540 | 6.3k | #12 |
| 29 | Taiwan | 18.4 | 16.6% | 626 | 7k | #24 |
| 30 | Greece | 17.6 | 18.4% | 437 | 5.1k | #29 |
| 31 | United Arab Emirates | 16.8 | 25.7% | 338 | 4.9k | #44 |
| 32 | Hong Kong | 16.0 | 34.8% | 248 | 5k | #31 |
| 33 | Vietnam | 15.3 | 13.3% | 780 | 5.8k | #42 |
| 34 | Ethiopia | 14.6 | 18.1% | 612 | 6.6k | #48 |
| 35 | Romania | 13.9 | 13.7% | 410 | 3.8k | #45 |
| 36 | Singapore | 13.2 | 29.2% | 236 | 4.5k | #19 |
| 37 | Mexico | 12.5 | 7.4% | 1.1k | 5.4k | #39 |
| 38 | Algeria | 11.9 | 12.8% | 567 | 4.3k | #46 |
| 39 | Sweden | 11.2 | 19.0% | 338 | 4k | #26 |
| 40 | Portugal | 10.6 | 12.8% | 590 | 4.3k | #34 |
| 41 | Switzerland | 10.0 | 22.8% | 268 | 3.6k | #18 |
| 42 | Russia | 9.4 | 4.2% | 1.4k | 4.2k | #47 |
| 43 | Thailand | 8.9 | 12.5% | 539 | 4.1k | #50 |
| 44 | Ukraine | 8.3 | 5.4% | 743 | 1.5k | #57 |
| 45 | Belgium | 7.8 | 18.7% | 295 | 3.2k | #32 |
| 46 | Colombia | 7.2 | 4.6% | 839 | 2.9k | #58 |
| 47 | Austria | 6.7 | 15.7% | 236 | 2.4k | #38 |
| 48 | Finland | 6.2 | 19.1% | 202 | 2.3k | #37 |
| 49 | Norway | 5.7 | 13.3% | 275 | 2.1k | #40 |
| 50 | Denmark | 5.2 | 15.2% | 255 | 2.5k | #41 |
| 51 | Czechia | 4.7 | 10.2% | 344 | 2.3k | #53 |
| 52 | Chile | 4.3 | 11.2% | 353 | 2.5k | #60 |
| 53 | Tunisia | 3.8 | 12.1% | 280 | 2k | #54 |
| 54 | Serbia | 3.3 | 9.4% | 318 | 1.4k | #64 |
| 55 | Ecuador | 2.9 | 6.4% | 399 | 1.2k | #69 |
| 56 | Sri Lanka | 2.5 | 9.7% | 264 | 1.5k | #63 |
| 57 | Croatia | 2.0 | 3.8% | 586 | 937 | #59 |
| 58 | Peru | 1.6 | 3.1% | 514 | 1.1k | #71 |
| 59 | Nepal | 120.2 | 8.6% | 232 | 1.1k | #67 |
| 60 | Philippines | 79.4 | 5.1% | 430 | 1.2k | #66 |
| 61 | Argentina | 39.4 | 4.8% | 387 | 1.4k | #56 |
| 62 | Kazakhstan | 0.0 | 6.8% | 214 | 942 | #73 |
countries ranked worldwide in Water Science and Technology (62). rank on the composite score within the stated pool. The score track runs 0 to 100; the rate track carries no world mark, because the world rate differs by field.
How spread out this pool is
Every row above on one axis — one tick each, right is a higher score. A field where the top few are far clear of everyone and one that runs down evenly look identical as a table.
One bar per band of score, counting the rows on this page.
Ranked by volume, 2022–2025
- 1 China 30k works
- 2 India 10k works
- 3 United States 7.5k works
- 4 Brazil 7.3k works
- 5 Indonesia 6.3k works
- 6 Iran 2.6k works
- 7 Türkiye 1.9k works
- 8 Malaysia 1.7k works
- 9 Nigeria 1.6k works
- 10 Egypt 1.6k works
- 11 South Korea 1.6k works
- 12 United Kingdom 1.5k works