Research Article
Assessment of Some Physicochemical Parameters and Heavy Metals in Hand-Dug Well Water Samples of Kafta Humera Woreda, Tigray, Ethiopia
Table 3
Pearson’s correlation analysis of the physicochemical parameters and heavy metals of hand-dug well water samples of Kafta Humera Woreda.
| | T0 | pH | TU | EC | TDS | TH | TA | Ca2+ | Mg2+ | K+ | Na+ | Cl- | | | | DO | Fe |
| T0 | 1 | pH | −0.666 | 1 | TU | 0.892 | −0.848 | 1 | EC | 0.532 | −0.110 | 0.422 | 1 | TDS | 0.532 | −0.110 | 0.422 | 1.00 | 1 | TH | 0.348 | −0.022 | 0.265 | 0.989 | 0.989 | 1 | TA | 0.411 | −0.239 | 0.474 | 0.827 | 0.827 | 0.862 | 1 | Ca2+ | 0.246 | −0.045 | 0.157 | 0.988 | 0.988 | 0.978 | 0.780 | 1 | Mg2+ | 0.255 | 0.137 | 0.055 | 0.881 | 0.881 | 0.939 | 0.887 | 0.871 | 1 | K+ | 0.221 | −0.10 | 0.188 | 0.995 | 0.995 | 0.985 | 0.813 | 0.986 | 0.875 | 1 | Na+ | 0.309 | −0.126 | 0.259 | 0.996 | 0.996 | 0.984 | 0.829 | 0.983 | 0.872 | 0.987 | 1 | Cl− | 0.154 | −0.129 | 0.223 | 0.998 | 0.998 | 0.981 | 0.805 | 0.987 | 0.857 | 0.996 | 0.994 | 1 | | 0.186 | −0.108 | 0.223 | 1.00 | 1.00 | 0.992 | 0.838 | 0.988 | 0.891 | 0.995 | 0.996 | 0.997 | 1 | | 0.252 | 0.080 | 0.124 | −0.330 | −0.330 | −0.220 | 0.213 | −0.362 | 0.081 | −0.343 | −0.328 | −0.374 | −0.307 | 1 | | 0.104 | −0.098 | 0.152 | 0.972 | 0.972 | 0.937 | 0.681 | 0.973 | 0.768 | 0.971 | 0.968 | 0.982 | 0.966 | −0.540 | 1 | DO | −0.708 | 0.869 | −0.867 | −381 | −0.380 | −0.295 | −0.472 | −0.299 | −0.101 | −0.371 | −0.403 | −0.398 | −0.375 | 0.169 | −0.363 | 1 | Fe | −0.565 | 0.214 | −0.492 | −0.298 | −0.298 | −0.374 | −0.772 | −0.240 | −0.559 | −0.271 | −0.309 | −0.258 | −0.318 | −0.740 | −0.079 | −0.03 | 1 |
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Correlation is significant at the 0.05 level (2-tailed). Correlation is significant at the 0.01 level (2-tailed). T0: temperature (°C); EC: electrical conductivity; Tu: turbidity; TDS: total dissolved solids; TH: total hardness; TA: total alkalinity; Ca 2+: calcium ion; Mg 2+: magnesium ion; Na +: sodium ion; K +: potassium ion; : sulphate ion; : phosphate ion; : nitrate ion; DO: dissolved oxygen; Fe: iron. |