Table 2.

Single ecological risk index and potential ecological risk of soil PTEs in study area.

Sample	$E_r^i$								PER
	As	Cd	Cr	Cu	Mn	Ni	Pb	Zn
A(A1)	14.84	26.32	427.25	14.80	1.32	40.81	61.24	0.70	587.27
A(A2)	15.41	22.67	15.06	3.70	0.37	13.82	66.40	0.78	138.20
B(B1)	19.92	34.89	49.59	7.82	0.93	50.78	59.31	0.89	224.12
B(B2)	19.15	125.85	30.80	10.15	0.88	28.27	54.14	3.78	273.03
B(B3)	19.01	47.28	36.04	4.86	0.76	31.90	69.98	2.12	211.96
C	20.66	37.90	35.00	4.50	1.06	31.65	67.44	1.34	199.54
D(D1)	19.66	62.33	36.46	5.95	0.85	32.00	68.59	1.32	227.15
D(D2)	21.12	60.63	29.58	6.95	0.91	26.38	57.10	2.60	205.27
D(D3)	17.46	44.28	35.30	6.68	0.73	31.70	66.42	2.31	204.86
D(D4)	16.55	40.20	34.61	4.74	0.78	32.92	63.30	0.84	193.94
E(E1)	31.86	137.73	83.53	11.06	1.08	59.94	63.21	3.82	392.23
E(E2)	16.13	64.20	50.77	6.99	0.91	50.10	67.01	1.19	257.32
E(E3)	18.10	52.39	15.55	6.45	0.97	14.45	67.62	2.50	178.04
F(F1)	14.93	10.24	40.29	5.88	0.75	38.62	67.03	0.67	178.40
F(F2)	19.14	27.60	59.40	7.15	0.68	56.11	65.69	0.86	236.64
G(G1)	16.93	61.25	102.18	10.21	1.06	72.56	63.24	1.34	328.77
G(G2)	15.51	51.89	38.64	5.48	0.86	34.27	61.02	0.99	208.66
H	14.16	71.93	35.40	6.20	0.81	32.94	67.35	1.51	230.30
I	17.35	63.10	395.55	4.76	1.07	37.61	61.68	1.52	582.64
J	18.83	76.39	41.44	7.26	0.89	41.47	55.14	1.86	243.27
Mean	18.34	55.95	79.62	7.08	0.88	37.91	63.64	1.65	265.08