Physicochemical Characterization and Evaluation of Seasonal Variations of Landfill Leachate and Groundwater Quality around Tanjaro Open Dump Area of Sulaymaniyah City, Kurdistan, Iraq

Table 6

Correlation matrix for different well parameters.

	Temp	pH	EC	TDS	TA	TH	BOD5	COD	Cl^−	NO3^−	SO4^2−	PO4^3−	Ca	Mg	Na	K	Fe	Zn
Temp
pH	0.98876
EC	0.94681	0.88807
TDS	0.94681	0.88807	1
TA	0.10208	−0.04776	0.41676	0.41676
TH	−0.93906	−0.97989	−0.77849	−0.77849	0.24611
BOD5	−0.80795	−0.88695	−0.57536	−0.57536	0.5037	0.96127
COD	−0.80795	−0.88695	−0.57536	−0.57536	0.5037	0.96127	1
Cl^−	0.70613	0.59235	0.89642	0.89642	0.77647	−0.41968	−0.15328	−0.15328
NO3^−	−0.94389	−0.88392	−0.99996	−0.99996	−0.42488	0.77284	0.56801	0.56801	−0.90036
SO4^2−	0.93752	0.87497	0.99961	0.99961	0.44183	−0.76077	−0.55244	−0.55244	0.90838	−0.99982
PO4^3−	0.54269	0.41104	0.7841	0.7841	0.89094	−0.22088	0.056468	0.056468	0.97795	−0.78963	0.80103
Ca	−0.9435	−0.98244	−0.78669	−0.78669	0.23332	0.99991	0.95756	0.95756	−0.4316	0.78113	−0.76925	−0.23371
Mg	−0.98917	−1	−0.88933	−0.88933	0.045027	0.97934	0.88568	0.88568	−0.59456	0.8852	−0.87629	−0.41354	0.98192
Na	1	0.98835	0.9477	0.9477	0.10483	−0.9381	−0.80632	−0.80632	0.70808	−0.9448	0.93847	0.54501	−0.94258	−0.98876
K	−0.87728	−0.93917	−0.67617	−0.67617	0.38791	0.98882	0.99163	0.99163	−0.27961	0.66955	−0.65546	−0.07295	0.98676	0.93823	−0.87595
Fe	0.9865	0.9999	0.88134	0.88134	−0.06219	−0.98267	−0.89353	−0.89353	0.58065	−0.87707	0.86789	0.39783	−0.98503	−0.99985	0.98605	−0.94404
Zn	0.84892	0.76038	0.97384	0.97384	0.61242	−0.6155	−0.37445	−0.37445	0.97368	−0.97584	0.97977	0.90462	−0.62583	−0.76216	0.85038	−0.49107	0.75092