Spatial Distribution and Contamination Assessment of Heavy Metals in Surface Sediments of the Caofeidian Adjacent Sea after the Land Reclamation, Bohai Bay

Table 4

Contamination and ecorisk indices of heavy metals in the sediments.

	Cd	Cr	Cu	Ni	Pb	Zn
<Class 1 (%)	100	45.5	68.2	-	100	100
Class 1 - Class 2 (%)	0	54.5	31.8	-	0	0
<TEL (%)	100	18.2	4.6	0	100	9.1
TEL - PEL (%)	0	81.8	95.5	40.9	0	90.9
>PEL (%)	0	0	0	59.1	0	0
EF	2.50–5.00	1.00–2.82	0.75–1.46	1.08–2.64	0.81–1.54	0.91–1.52
	3.44	2.11	1.09	1.92	1.03	1.19
	0.54–2.24	−0.95–1.14	−1.75–0.06	−0.79–1.14	−0.99–−0.32	−1.35–0.39
	1.32	0.52	−0.42	0.38	−0.51	−0.30
Hakanson	65.45–212.75	1.55–6.61	2.23–7.80	1.73–6.59	3.77–6.01	0.57–1.97
	118.80	4.49	5.81	4.13	5.28	1.26