Subfield · Environmental Engineering
Top Countries in Environmental Engineering Research
China ranks first in 2022–2025, out of 65 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 | 26.5% | 34k | 385k | #2 |
| 2 | United States | 83.4 | 18.1% | 11k | 98k | #1 |
| 3 | India | 73.7 | 15.0% | 9k | 55k | #10 |
| 4 | United Kingdom | 66.8 | 24.0% | 3.1k | 35k | #3 |
| 5 | Italy | 61.4 | 22.0% | 3.2k | 29k | #5 |
| 6 | Germany | 57.1 | 20.6% | 3.2k | 30k | #4 |
| 7 | Australia | 53.4 | 25.7% | 1.9k | 25k | #7 |
| 8 | Türkiye | 50.2 | 17.5% | 2.4k | 17k | #16 |
| 9 | Iran | 47.4 | 21.5% | 2k | 19k | #18 |
| 10 | Canada | 44.8 | 19.5% | 2.3k | 21k | #8 |
| 11 | Hong Kong | 42.6 | 39.8% | 793 | 13k | #20 |
| 12 | South Korea | 40.5 | 20.1% | 2.1k | 19k | #15 |
| 13 | Spain | 38.6 | 19.8% | 2.1k | 19k | #11 |
| 14 | France | 36.8 | 15.0% | 2.6k | 18k | #6 |
| 15 | Netherlands | 35.1 | 26.5% | 1k | 12k | #9 |
| 16 | Saudi Arabia | 33.6 | 29.2% | 862 | 11k | #26 |
| 17 | Malaysia | 32.1 | 16.5% | 1.3k | 10k | #22 |
| 18 | Pakistan | 30.8 | 25.9% | 704 | 8.1k | #32 |
| 19 | Japan | 29.5 | 13.4% | 2.1k | 13k | #12 |
| 20 | ?? | 28.2 | 19.6% | 963 | 8.4k | #28 |
| 21 | Poland | 27.1 | 16.4% | 1.3k | 9.9k | #34 |
| 22 | Egypt | 26.0 | 23.1% | 846 | 8k | #35 |
| 23 | Switzerland | 24.9 | 24.9% | 659 | 7.8k | #13 |
| 24 | Brazil | 23.9 | 8.6% | 2.5k | 11k | #23 |
| 25 | Singapore | 22.9 | 34.5% | 423 | 6.5k | #25 |
| 26 | Portugal | 22.0 | 21.9% | 708 | 6.5k | #30 |
| 27 | Bangladesh | 21.0 | 22.4% | 602 | 5.6k | #39 |
| 28 | Sweden | 20.2 | 25.5% | 689 | 8.1k | #14 |
| 29 | Russia | 19.3 | 6.0% | 1.9k | 6.3k | #29 |
| 30 | Norway | 18.5 | 20.6% | 745 | 7.5k | #21 |
| 31 | Belgium | 17.7 | 20.2% | 646 | 6.4k | #19 |
| 32 | Denmark | 17.0 | 23.3% | 609 | 6.2k | #17 |
| 33 | Nigeria | 16.2 | 10.1% | 928 | 4.4k | #40 |
| 34 | Taiwan | 15.5 | 16.4% | 776 | 6.5k | #31 |
| 35 | Greece | 14.8 | 19.6% | 787 | 6.1k | #27 |
| 36 | Finland | 14.2 | 24.4% | 484 | 5.4k | #33 |
| 37 | United Arab Emirates | 13.5 | 21.5% | 374 | 3.8k | #49 |
| 38 | Ukraine | 12.9 | 6.5% | 1.2k | 2.3k | #45 |
| 39 | Austria | 12.2 | 22.1% | 456 | 5.1k | #24 |
| 40 | South Africa | 11.6 | 18.6% | 501 | 4k | #41 |
| 41 | Vietnam | 11.0 | 16.2% | 543 | 3.3k | #42 |
| 42 | Morocco | 10.5 | 19.8% | 511 | 3.6k | #50 |
| 43 | Romania | 9.9 | 15.0% | 521 | 2.8k | #46 |
| 44 | Iraq | 9.3 | 8.9% | 844 | 3.7k | #53 |
| 45 | Indonesia | 8.8 | 4.9% | 1.9k | 4k | #44 |
| 46 | Ireland | 8.3 | 25.7% | 260 | 3.1k | #36 |
| 47 | Thailand | 7.8 | 14.5% | 554 | 3.7k | #52 |
| 48 | Hungary | 7.3 | 17.8% | 328 | 2.5k | #51 |
| 49 | Mexico | 6.8 | 8.8% | 696 | 3.3k | #47 |
| 50 | Ethiopia | 6.3 | 19.2% | 388 | 3.4k | #60 |
| 51 | New Zealand | 5.8 | 19.4% | 262 | 2.2k | #38 |
| 52 | Czechia | 5.3 | 12.7% | 432 | 2.8k | #43 |
| 53 | Algeria | 4.9 | 11.5% | 404 | 2k | #58 |
| 54 | Croatia | 4.4 | 15.8% | 236 | 1.9k | #56 |
| 55 | Tunisia | 4.0 | 15.6% | 223 | 1.5k | #54 |
| 56 | Israel | 3.6 | 13.8% | 229 | 1.8k | #37 |
| 57 | Colombia | 3.1 | 8.9% | 350 | 1.6k | #61 |
| 58 | Chile | 2.7 | 13.4% | 250 | 1.6k | #55 |
| 59 | Slovakia | 2.3 | 10.9% | 269 | 1.2k | #57 |
| 60 | Kazakhstan | 1.9 | 12.7% | 220 | 1k | #71 |
| 61 | Serbia | 1.5 | 11.8% | 216 | 1.1k | #64 |
| 62 | Philippines | 113.2 | 6.6% | 279 | 868 | #67 |
| 63 | Argentina | 74.9 | 9.0% | 236 | 890 | #59 |
| 64 | Bulgaria | 37.1 | 6.1% | 257 | 703 | #70 |
| 65 | Peru | 0.0 | 6.2% | 227 | 749 | #72 |
countries ranked worldwide in Environmental Engineering (65). 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 34k works
- 2 United States 11k works
- 3 India 9k works
- 4 Germany 3.2k works
- 5 Italy 3.2k works
- 6 United Kingdom 3.1k works
- 7 France 2.6k works
- 8 Brazil 2.5k works
- 9 Türkiye 2.4k works
- 10 Canada 2.3k works
- 11 South Korea 2.1k works
- 12 Spain 2.1k works