Table 2.
Top 5 countries in the world for microplastic neurotoxicity research
| Ranking | Country | Frequent | Centrality | Year |
|---|---|---|---|---|
| 1 | People’s R China | 16 | 0.30 | 2018 |
| 2 | Portugal | 5 | 0.31 | 2018 |
| 3 | Italy | 5 | 0.63 | 2018 |
| 4 | Canada | 4 | 0.51 | 2018 |
| 5 | France | 3 | 0.16 | 2018 |
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