Science Explorer Interactive view Map

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

#CountryScoreTop-10% rateWorksCitationsAll time
1China 100.0 26.5% 34k 385k#2
2United States 83.4 18.1% 11k 98k#1
3India 73.7 15.0% 9k 55k#10
4United Kingdom 66.8 24.0% 3.1k 35k#3
5Italy 61.4 22.0% 3.2k 29k#5
6Germany 57.1 20.6% 3.2k 30k#4
7Australia 53.4 25.7% 1.9k 25k#7
8Türkiye 50.2 17.5% 2.4k 17k#16
9Iran 47.4 21.5% 2k 19k#18
10Canada 44.8 19.5% 2.3k 21k#8
11Hong Kong 42.6 39.8% 793 13k#20
12South Korea 40.5 20.1% 2.1k 19k#15
13Spain 38.6 19.8% 2.1k 19k#11
14France 36.8 15.0% 2.6k 18k#6
15Netherlands 35.1 26.5% 1k 12k#9
16Saudi Arabia 33.6 29.2% 862 11k#26
17Malaysia 32.1 16.5% 1.3k 10k#22
18Pakistan 30.8 25.9% 704 8.1k#32
19Japan 29.5 13.4% 2.1k 13k#12
20?? 28.2 19.6% 963 8.4k#28
21Poland 27.1 16.4% 1.3k 9.9k#34
22Egypt 26.0 23.1% 846 8k#35
23Switzerland 24.9 24.9% 659 7.8k#13
24Brazil 23.9 8.6% 2.5k 11k#23
25Singapore 22.9 34.5% 423 6.5k#25
26Portugal 22.0 21.9% 708 6.5k#30
27Bangladesh 21.0 22.4% 602 5.6k#39
28Sweden 20.2 25.5% 689 8.1k#14
29Russia 19.3 6.0% 1.9k 6.3k#29
30Norway 18.5 20.6% 745 7.5k#21
31Belgium 17.7 20.2% 646 6.4k#19
32Denmark 17.0 23.3% 609 6.2k#17
33Nigeria 16.2 10.1% 928 4.4k#40
34Taiwan 15.5 16.4% 776 6.5k#31
35Greece 14.8 19.6% 787 6.1k#27
36Finland 14.2 24.4% 484 5.4k#33
37United Arab Emirates 13.5 21.5% 374 3.8k#49
38Ukraine 12.9 6.5% 1.2k 2.3k#45
39Austria 12.2 22.1% 456 5.1k#24
40South Africa 11.6 18.6% 501 4k#41
41Vietnam 11.0 16.2% 543 3.3k#42
42Morocco 10.5 19.8% 511 3.6k#50
43Romania 9.9 15.0% 521 2.8k#46
44Iraq 9.3 8.9% 844 3.7k#53
45Indonesia 8.8 4.9% 1.9k 4k#44
46Ireland 8.3 25.7% 260 3.1k#36
47Thailand 7.8 14.5% 554 3.7k#52
48Hungary 7.3 17.8% 328 2.5k#51
49Mexico 6.8 8.8% 696 3.3k#47
50Ethiopia 6.3 19.2% 388 3.4k#60
51New Zealand 5.8 19.4% 262 2.2k#38
52Czechia 5.3 12.7% 432 2.8k#43
53Algeria 4.9 11.5% 404 2k#58
54Croatia 4.4 15.8% 236 1.9k#56
55Tunisia 4.0 15.6% 223 1.5k#54
56Israel 3.6 13.8% 229 1.8k#37
57Colombia 3.1 8.9% 350 1.6k#61
58Chile 2.7 13.4% 250 1.6k#55
59Slovakia 2.3 10.9% 269 1.2k#57
60Kazakhstan 1.9 12.7% 220 1k#71
61Serbia 1.5 11.8% 216 1.1k#64
62Philippines 113.2 6.6% 279 868#67
63Argentina 74.9 9.0% 236 890#59
64Bulgaria 37.1 6.1% 257 703#70
65Peru 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.

0 – 5: 13 places5 – 10: 10 places10 – 15: 8 places15 – 20: 6 places20 – 25: 6 places25 – 30: 4 places30 – 35: 3 places35 – 40: 3 places40 – 45: 3 places45 – 50: 1 places50 – 55: 2 places55 – 60: 1 places60 – 65: 1 places65 – 70: 1 places70 – 75: 1 places75 – 80: 0 places80 – 85: 1 places85 – 90: 0 places90 – 95: 0 places95 – 100: 1 places0100

One bar per band of score, counting the rows on this page.

Ranked by volume, 2022–2025

  1. 1 China 34k works
  2. 2 United States 11k works
  3. 3 India 9k works
  4. 4 Germany 3.2k works
  5. 5 Italy 3.2k works
  6. 6 United Kingdom 3.1k works
  7. 7 France 2.6k works
  8. 8 Brazil 2.5k works
  9. 9 Türkiye 2.4k works
  10. 10 Canada 2.3k works
  11. 11 South Korea 2.1k works
  12. 12 Spain 2.1k works