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Country Rankings

Countries ranked by microplastic research output — total papers, top-tier evidence, and citation impact.

Papers with more than 50 co-authors are excluded. How rankings work →

Rank Country Papers Tier 1 Citations Institutions
1 🇨🇳 China 17,743 269 679,952 1,762
2 🇺🇸 United States 7,306 139 324,322 2,008
3 🇮🇳 India 4,468 77 103,394 934
4 🇬🇧 United Kingdom 3,670 82 258,672 527
5 🇮🇹 Italy 3,416 56 135,063 337
6 🇩🇪 Germany 3,011 50 184,473 412
7 🇪🇸 Spain 2,545 33 103,429 257
8 🇨🇦 Canada 2,164 35 117,267 224
9 🇰🇷 South Korea 2,033 19 77,169 245
10 🇮🇩 Indonesia 2,011 85 20,218 335
11 🇦🇺 Australia 1,956 57 143,532 166
12 🇧🇷 Brazil 1,933 51 54,650 331
13 🇫🇷 France 1,918 14 97,989 346
14 🇳🇱 Netherlands 1,619 31 136,153 116
15 🇯🇵 Japan 1,518 19 43,991 391
16 🇵🇱 Poland 1,192 13 26,860 128
17 🇲🇾 Malaysia 1,165 33 40,730 81
18 🇵🇹 Portugal 1,148 22 73,558 98
19 🇹🇷 Turkey 1,138 24 24,491 202
20 🇮🇷 Iran 1,011 41 35,431 202
21 🇸🇪 Sweden 908 16 53,637 79
22 🇸🇦 Saudi Arabia 856 13 28,179 59
23 🇳🇴 Norway 811 18 58,089 91
24 🇧🇩 Bangladesh 798 18 21,237 95
25 🇵🇰 Pakistan 794 22 20,934 158
26 🇩🇰 Denmark 758 13 47,951 49
27 🇭🇰 HK 751 14 42,869 12
28 🇲🇽 Mexico 729 14 22,701 132
29 🇳🇬 Nigeria 703 11 19,679 144
30 🇿🇦 South Africa 668 18 29,897 56
31 🇨🇭 Switzerland 661 5 38,165 106
32 🇦🇹 Austria 622 3 30,259 80
33 🇧🇪 Belgium 618 7 37,007 88
34 🇹🇼 Taiwan 614 9 19,672 117
35 🇷🇺 Russia 612 10 10,335 204
36 🇪🇬 Egypt 611 8 18,468 68
37 🇹🇭 Thailand 599 15 11,530 96
38 🇫🇮 Finland 536 6 29,977 52
39 🇬🇷 Greece 531 13 17,516 66
40 🇨🇿 Czech Republic 528 7 18,301 59
41 🇻🇳 Vietnam 438 7 12,725 93
42 🇮🇪 Ireland 368 13 33,789 34
43 🇸🇬 Singapore 354 8 19,391 36
44 🇨🇱 Chile 351 4 27,173 63
45 🇳🇿 New Zealand 335 5 22,717 45
46 🇷🇴 Romania 327 7 7,882 62
47 🇨🇴 Colombia 322 5 6,601 89
48 🇸🇮 SI 312 4 10,769 36
49 🇦🇷 Argentina 280 3 9,267 59
50 🇵🇭 Philippines 266 10 3,261 106