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Spearman rank order correlation between the levels of precipitation and the concentration of FIB per basin area.
| Microorganism (spearman rank order correlation, r) | ||
| Location | EC | IE |
| Alcântara | 0.114 | 0.146 |
| Ilhas | −0.528 | −0.297 |
| Madalena | 0.103 | 0.128 |
