Figure 1

Figure 2

Correlation coefficient matrix
| pH | EC | TDS | Alk | TH | Cl | DO | Ca | Mg | Mn | Cu | Cd | Pb | Ni | Zn | As | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pH | 1 | |||||||||||||||
| EC | 0.13 | |||||||||||||||
| TDS | 0.09 | 0.76** | ||||||||||||||
| Alk | 0.62* | 0.06 | 0.88** | |||||||||||||
| TH | −0.46 | 0.88** | 0.18 | 0.68 | ||||||||||||
| Cl | −0.07 | −0.29 | −0.57* | −0.54* | −0.48 | |||||||||||
| DO | 0.18 | −0.24 | −0.16 | −0.18 | −0.31 | 0.65* | ||||||||||
| Ca | 0.58 | 0.32 | 0.60* | 0.97** | 0.24 | 0.23 | 0.00 | |||||||||
| Mg | 0.46 | 0.29 | 0.36 | 0.59* | 0.14 | 0.88** | 0.67** | 0.20 | ||||||||
| Mn | 0.89** | 0.76** | 0.47 | 0.50* | 0.46 | 0.52* | 0.16 | 0.34 | 0.51* | |||||||
| Cu | 0.44 | 0.85** | 0.11 | 0.63* | 0.49 | 0.86** | 0.53* | 0.56* | 0.34 | 0.01 | ||||||
| Cd | 0.90** | 0.65** | 0.03 | 0.6 | 0.17 | 0.08 | 0.10 | 0.05 | 0.13 | 0.55* | 0.32 | |||||
| Pb | 0.89** | 0.83** | 0.12 | 0.59 | 0.54 | 0.36 | 0.40 | 0.33 | 0.68** | 0.23 | 0.15 | 0.33 | ||||
| Ni | 0.48 | 0.48 | 0.23 | 0.22 | 0.26 | 0.86** | 0.72 | 0.84** | 0.49 | 0.00 | 0.00 | 0.39 | 0.65* | |||
| Zn | 0.51* | 0.52* | 0.74** | 0.99** | 0.83** | 0.64* | 0.63* | 0.41 | 0.75** | 0.25 | 0.01 | 0.85** | 0.91** | 0.08 | ||
| As | 0.50* | 0.99** | 0.09 | 0.38 | 0.40 | 0.67** | 0.30 | 0.29 | 0.51 | 0.01 | 0.0 | 0.4 | 0.01 | 0.02 | 0.10 | 1 |
Varimax rotated component matrix for selected variables
| PC1 | PC2 | PC3 | PC4 | PC5 | |
|---|---|---|---|---|---|
| pH | 0.07 | 0.21 | −0.43 | −0.14 | 0.28 |
| EC | 0.10 | −0.31 | 0.42 | −0.02 | 0.03 |
| TDS | 0.30 | −0.05 | −0.42 | −0.07 | −0.08 |
| Alk | 0.19 | −0.17 | 0.29 | −0.47 | 0.27 |
| TH | 0.24 | −0.32 | 0.29 | −0.01 | −0.04 |
| Cl | −0.15 | 0.31 | 0.23 | 0.40 | −0.05 |
| DO | 0.031 | 0.40 | 0.22 | −0.04 | −0.28 |
| Ca | −0.01 | −0.42 | −0.18 | 0.27 | 0.12 |
| Mg | 0.19 | −0.18 | 0.01 | 0.54 | −0.29 |
| Mn | 0.33 | 0.17 | 0.21 | 0.11 | −0.05 |
| Cu | 0.39 | 0.15 | −0.04 | 0.13 | 0.09 |
| Cd | 0.25 | −0.28 | −0.27 | 0.11 | −0.14 |
| Pb | −0.27 | −0.07 | 0.07 | 0.29 | 0.54 |
| Ni | 0.36 | 0.06 | 0.10 | 0.10 | 0.36 |
| Zn | 0.20 | 0.23 | 0.00 | 0.24 | 0.41 |
| As | 0.40 | 0.16 | 0.01 | −0.08 | −0.09 |
| Eigenvalues | 5.30 | 4.20 | 2.33 | 1.62 | 1.29 |
| % of variance | 33.17 | 26.27 | 14.52 | 10.14 | 8.11 |
| Cumulative | 33.17 | 59.44 | 74.03 | 84.17 | 92.28 |
Toxicological parameters of selected metals used for health risk assessment (USEPA 2004, Wang et al_ 2017)
| Units | Mean | Min. | Max | WHO (2011) | TSWQR* | |
|---|---|---|---|---|---|---|
| pH | 9.01 ± 0.38 | 8.27 | 9.45 | 7.5 | III | |
| T | °C | 9.15 ± 2.05 | 5.2 | 14.8 | I | |
| DO | 8.33 ± 0.55 | 8 | 9.67 | I | ||
| EC | µS c−1 | 324 ± 79.5 | 202.4 | 467 | 2500 | I |
| TDS | mg l−1 | 80.7 ± 44.75 | 20.3 | 138.4 | 600 | I |
| TH | 26.6 ± 584 | 19 | 34.87 | 100 | I | |
| Salinity | 0.16 ± 0.09 | 0.07 | 0.34 | - | ||
| ORP | 324 ± 79 | 202.4 | 467 | - | ||
| NO2-N | mg l−1 | 0.14 ± 0.0.11 | 0.002 | 0.035 | 0.9 | IV |
| NO3-N | 0.12 ± 0.1 | 0.03 | 0.34 | I | ||
| Si2 | 2430 ± 1449 | 4437 | 520 | I | ||
| TP | 0.718 ± 0.5 | 1.87 | 0.13 | III | ||
| Ca | mg l−1 | 142.2 ± 57.6 | 218.5 | 54.75 | 75 | |
| Mg | 125.7 ± 39.2 | 184.2 | 69.9 | 50 | ||
| Na | 4.04 | 1.85 | 6.74 | 200 | I | |
| Al | µg l−1 | 50.5 ± 122.6 | 4 | 372 | 200 | I |
| Cr | 9 ± 4.08 | 2.8 | 6.6 | 50 | I | |
| Mn | 0.04 ± 0.012 | 0.02 | 0.04 | 400 | I | |
| Fe | 31.55 ± 63.54 | 10 | 201 | 300 | I | |
| Co | 0.04 ± 0.04 | 0.02 | 0.16 | 50 | I | |
| Ni | 0.75 ± 0.1 | 0.2 | 3 | 70 | I | |
| Cu | 0.9 ± 0.72 | 0.4 | 2.8 | 2000 | I | |
| Zn | 2.07 ± 1.53 | 0.5 | 6.0 | 3000 | I | |
| As | 0.68 ± 0.65 | 0.2 | 2.3 | 10 | I | |
| Cd | 6.88 ± 0.60 | 6.0 | 8.0 | 3 | III | |
| Hg | 0.07 ± 0.02 | 0.06 | 0.1 | I | ||
| Pb | 12.44 ± 5.81 | 2.2 | 21.5 | 10 | II |
Health risk assessment for metals in water, for adults and children via ingestion and dermal intake
| Metal | Adult | Child | Adult | Child | Adult | Child |
|---|---|---|---|---|---|---|
| HQIngestion | HQdermal | HI | ||||
| Pb | 0.029704 | 0.02970367 | 0.02970367 | 0.02970367 | 0.059407 | 0.059407 |
| Cd | 0.019657 | 0.000736 | 0.00137211 | 0.003036 | 0.021029 | 0.003772 |
| Fe | 1.8E-05 | 1.2032E-06 | 2.0028E-06 | 4.4317E-06 | 2E-05 | 5.63E-06 |
| Cu | 0.000366 | 0.00218424 | 8.9299E-05 | 0.000199759 | 0.000456 | 0.002382 |
| Zn | 3.94E-05 | 0.00022229 | 1.5541E-05 | 3.4386E-05 | 5.5E-05 | 0.000257 |
| Ni | 4.29E-05 | 0.000288 | 0.00016779 | 3.7125E-05 | 0.000211 | 0.000325 |
| Hg | 0.000533 | 3.7333E-05 | 3.551E-05 | 7.857E-05 | 0.000569 | 0.000116 |
| Total | 1.8E-05 | 1.2032E-06 | 2.0028E-06 | 4.4314E-06 | 0.031368 | 0.027927 |
Temporal and spatial variation values of the irrigation water quality indices of Munzur Stream
| Station | WQI | MH | Na% | SAR | PI | RSC | IWQI |
|---|---|---|---|---|---|---|---|
| S1 | 37 | 26.16 | 43.71 | 0.01 | 5.49 | −216.22 | 2.28 |
| S2 | 46 | 23.37 | 51.11 | 0.01 | 5.23 | 251.17 | 2.86 |
| S3 | 50 | 24.48 | 50.60 | 0.01 | 5.29 | 251.75 | 3.13 |
| S4 | 38 | 26.77 | 45.96 | 0.01 | 5.44 | 238.75 | 2.38 |
| S5 | 37 | 25.14 | 49.13 | 0.02 | 4.98 | −334.89 | 2.31 |
| S6 | 36 | 22.48 | 53.87 | 0.03 | 6.84 | −229.35 | 2.25 |
| S7 | 40 | 23.54 | 52.07 | 0.02 | 5.95 | −264.60 | 2.47 |
| S8 | 40 | 22.48 | 53.78 | 0.04 | 6.60 | −278.37 | 2.47 |
| S9 | 44 | 25.01 | 48.75 | 0.04 | 7.32 | −24914 | 2.75 |
| Mean | 40.8 | 24.38 | 49.88 | 0.02 | 5.91 | −257.14 | 2.25 |