Monitoring of the changes in potential environmental risk of some heavy metals in water and sediments of Burullus Lake, Egypt

Bulletin of the National Research Centre

Table 14 Ecological risk factor 2010

Sites	Zn	Cu	Ni	Cr	Pb	Cd	Ri
Sites	μg/g	μg/g	μg/g	μg/g	μg/g	μg/g	Ri
1	0.93	8.89	2.87	3.16	2.25	160	178.09
2	0.59	2.78	1.72	0.89	2.75	130	138.73
3	0.52	2.44	1.46	0.80	2.25	120	127.47
4	1.14	8.89	3.44	3.20	2.50	430	449.17
5	0.58	2.78	1.76	0.78	2.50	170	178.40
6	0.62	3.89	2.43	1.67	2.00	220	230.60
7	0.59	4.67	2.87	1.89	1.25	320	331.26
8	0.47	4.56	1.72	1.24	2.25	150	160.24
9	1.04	2.67	1.72	1.02	2.00	180	188.45
10	0.55	2.89	1.59	1.09	2.00	160	168.11
11	1.09	7.89	3.13	2.00	2.50	330	346.62
12	0.62	3.22	1.99	1.00	1.25	120	128.08