Open Access
Table 5
Correlations between different chemical characteristics of water in Magic Lake during January 2019.
| Equation number | x | y | Equation | R | p |
|---|---|---|---|---|---|
| 1 | BOD, mg/l | COD, mg/l | Y = 9.36 ‑ 1.42 ln(X) | ‑0.656 | 0.01 |
| 2 | NH3, μg/l | NO3, mg/l | Y = 0.281x + 0.145 | 0.580 | 0.05 |
| 3 | PO4, μg/l | TP, μg/l | Y = 0.75x + 79.62 | 0.871 | 0.001 |
| 4 | TN, mg/l | PO4, μg/l | Y = 5.42x + 62.67 | 0.686 | 0.01 |
| 5 | NH3, μg/l | TN, mg/l | Y = 0.437x + 2.386 | 0.565 | 0.05 |
| 6 | PO4, μg/l | Fe, μg/l | Y = 0.684x + 212.3 | 0.646 | 0.01 |
| 7 | PO4, μg/l | Ca, mg/l | Y = 0.244x + 323.57 | 0.607 | 0.05 |
| 8 | PO4, μg/l | Cd, μg/l | Y = 0.006x + 0.327 | 0.761 | 0.005 |
| 9 | Ca, mg/l | Fe, μg/l | Y = 1.744x + 327.88 | 0.660 | 0.01 |
| 10 | Ca, mg/l | Cu, μg/l | Y = 0.096x + 27.756 | 0.653 | 0.01 |
| 11 | Na, g/l | Pb, μg/l | Y = 95.493 ‑ 10.094x | ‑0.605 | 0.05 |
| 12 | SO4, g/l | Ca, mg/l | Y = 756.93 ‑ 52.827x | ‑0.720 | 0.005 |
| 13 | SO4, g/l | Cu, μg/l | Y = 64.214 ‑ 7.540x | ‑0.693 | 0.01 |
| 14 | Salinity, g/l | Fe, μg/l | Y = 3051 ‑ 97.295x | ‑0.587 | 0.05 |
| 15 | Salinity, g/l | Pb, μg/l | Y = 114.03 ‑ 3.64x | ‑0.590 | 0.05 |
| 16 | Salinity, g/l | Ni, μg/l | Y = 67.182 ‑ 2.2x | ‑0.734 | 0.005 |
| 17 | TSS, mg/l | Fe, μg/l | Y = 128.83 + 18.02x | 0.658 | 0.01 |
| 18 | Depth, m | Zn, μg/l | Y = 25.51 ‑ 1.314x | ‑0.577 | 0.05 |
| 19 | Depth, m | Pb, μg/l | Y = 9.356x‑0.141 | ‑0.652 | 0.01 |
| 21 | Fe, μg/l | Zn, μg/l | Y = 0.145x‑18.732 | 0.731 | 0.005 |
| 22 | Fe, μg/l | Pb, μg/l | Y = 0.02x + 2.586 | 0.553 | 0.05 |
| 23 | Pb, μg/l | Ni, μg/l | Y = 0.313x + 0.627 | 0.643 | 0.01 |
| 24 | Zn, μg/l | Cr, μg/l | Y = 8.606 ‑ 0.115x | 0.692 | 0.01 |
| 25 | TSS, mg/l | Fe, μg/l | Y = 18.02 x + 128.83 | 0.658 | 0.01 |
| 26 | Depth, m | TSS, mg/l | Y = 9.72 ‑ 0.006x (for depth up to 4.5 m) | 0.697 | 0.01 |
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