. 2021 May 28;28(40):56219–56233. doi: 10.1007/s11356-021-14304-8
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Table 3.
Random index values
| n | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| RI | 0 | 0 | 0.52 | 0.89 | 1.11 | 1.25 | 1.35 | 1.40 |