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.

T0pHTUECTDSTHTACa2+Mg2+K+Na+Cl-DOFe

T01
pH−0.6661
TU0.892−0.8481
EC0.532−0.1100.4221
TDS0.532−0.1100.4221.001
TH0.348−0.0220.2650.9890.9891
TA0.411−0.2390.4740.8270.8270.8621
Ca2+0.246−0.0450.1570.9880.9880.9780.7801
Mg2+0.2550.1370.0550.8810.8810.9390.8870.8711
K+0.221−0.100.1880.9950.9950.9850.8130.9860.8751
Na+0.309−0.1260.2590.9960.9960.9840.8290.9830.8720.9871
Cl0.154−0.1290.2230.9980.9980.9810.8050.9870.8570.9960.9941
0.186−0.1080.2231.001.000.9920.8380.9880.8910.9950.9960.9971
0.2520.0800.124−0.330−0.330−0.2200.213−0.3620.081−0.343−0.328−0.374−0.3071
0.104−0.0980.1520.9720.9720.9370.6810.9730.7680.9710.9680.9820.966−0.5401
DO−0.7080.869−0.867−381−0.380−0.295−0.472−0.299−0.101−0.371−0.403−0.398−0.3750.169−0.3631
Fe−0.5650.214−0.492−0.298−0.298−0.374−0.772−0.240−0.559−0.271−0.309−0.258−0.318−0.740−0.079−0.031

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; Ca2+: calcium ion; Mg2+: magnesium ion; Na+: sodium ion; K+: potassium ion; : sulphate ion; : phosphate ion; : nitrate ion; DO: dissolved oxygen; Fe: iron.