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

Table 5

Correlation matrix for different leachate parameter.

	Temp	pH	EC	TDS	TA	TH	BOD5	COD	Cl^−	NO3^−	SO4^2−	PO4^3−	Ca	Mg	Na	K	Cr	Mn	Ni	Cu	Fe	Co	Zn	As	Pb	Se
Temp
pH	−0.98688
EC	0.64902	−0.76335
TDS	0.65092	−0.76497	1
TA	0.69027	−0.79805	0.99846	0.99859
TH	0.83419	−0.91229	0.96095	0.96164	0.97484
BOD5	0.004184	−0.1656	0.76348	0.76186	0.72643	0.55496
COD	−0.011701	−0.14992	0.75312	0.75147	0.71542	0.54168	0.99987
Cl^−	0.050832	−0.21143	0.79278	0.79125	0.7577	0.59317	0.99891	0.99804
NO3^−	0.26288	−0.41522	0.90463	0.90356	0.87956	0.75137	0.96592	0.96169	0.97694
SO4^2−	−0.28018	0.12149	0.54846	0.54636	0.50117	0.29566	0.95877	0.96316	0.94446	0.85253
PO4^3−	−0.13721	−0.024536	0.66452	0.66265	0.62199	0.4318	0.98996	0.99208	0.98229	0.91963	0.98931
Ca	0.88167	−0.94629	0.93121	0.93212	0.95001	0.99571	0.47556	0.46153	0.51608	0.68705	0.20595	0.34644
Mg	0.98512	−0.99994	0.77011	0.77171	0.80435	0.91656	0.17598	0.16032	0.22172	0.42478	−0.111	0.035064	0.94964
Na	−0.16785	0.0064654	0.64104	0.63911	0.59742	0.40363	0.9851	0.98771	0.97601	0.90702	0.99336	0.99952	0.31719	0.004068
K	0.024726	−0.18583	0.77659	0.77501	0.7404	0.57193	0.99979	0.99934	0.99966	0.97103	0.95273	0.98685	0.49353	0.19617	0.98136
Cr	−0.48452	0.3369	0.35105	0.3487	0.2985	0.07824	0.87275	0.88039	0.84902	0.71665	0.9755	0.93299	−0.01439	−0.32696	0.9437	0.86254
Mn	0.95012	−0.98801	0.85392	0.85522	0.88151	0.96458	0.31586	0.30075	0.35978	0.55068	0.03319	0.17857	0.98486	0.98958	0.14798	0.33528	−0.18752
Ni	0.18296	−0.33931	0.86668	0.86542	0.83763	0.69479	0.98388	0.98091	0.99115	0.99664	0.89248	0.94872	0.62522	0.3492	0.93846	0.98734	0.77137	0.48046
Cu	−0.62664	0.49257	0.18618	0.18371	0.13132	−0.093	0.77668	0.78659	0.74645	0.58717	0.92367	0.85792	−0.18475	−0.48338	0.87344	0.76358	0.98534	−0.35232	0.6515
Fe	0.9208	−0.9717	0.89435	0.89546	0.91781	0.98322	0.39388	0.37923	0.43634	0.61837	0.11643	0.26	0.99589	0.97413	0.22994	0.41268	−0.10495	0.99652	0.55192	−0.27305
Co	0.37595	−0.52065	0.94896	0.94817	0.92998	0.82463	0.9282	0.92218	0.94455	0.99288	0.78419	0.86629	0.76872	0.52961	0.85039	0.93565	0.62845	0.6462	0.97978	0.48655	0.7076
Zn	−0.33574	0.17923	0.49871	0.49653	0.44979	0.23939	0.94054	0.94582	0.92367	0.82057	0.99829	0.97911	0.14847	−0.16886	0.98494	0.93336	0.98668	−0.02522	0.86462	0.94446	0.058242	0.74663
As	−0.58882	0.45058	0.23275	0.23031	0.17837	−0.0455	0.80579	0.8151	0.77729	0.62505	0.94087	0.88141	−0.13774	−0.44115	0.89563	0.79346	0.99235	−0.30736	0.68689	0.99887	−0.22693	0.5276	0.95904
Pb	−0.11436	−0.047555	0.68155	0.67972	0.63986	0.45246	0.99295	0.99471	0.98634	0.92844	0.98569	0.99973	0.36795	0.058073	0.99854	0.99031	0.92445	0.20118	0.95575	0.84586	0.28217	0.87756	0.97417	0.8703
Se	0.02873	−0.18976	0.7791	0.77753	0.74308	0.57521	0.9997	0.99918	0.99976	0.97198	0.9515	0.98619	0.49701	0.20009	0.98058	0.99999	0.8605	0.33905	0.98797	0.76099	0.41633	0.93706	0.93192	0.79102	0.98974