Distribution and extent of heavy metal(loid) contamination in agricultural soils as affected by industrial activity

Applied Biological Chemistry

Table 5 The number of soil samples at each I_geo range and the total number of soils whose I_geo value is over 3

I_geo value	Distance (m)	As	Cd	Cu	Ni	Pb	Zn	Hg
I_geo ≤ 0	0–500	6	79	8	4	11	7	6
I_geo ≤ 0	500–1000	7	80	5	4	13	6	7
0 < I_geo < 1	0–500	96	41	71	89	82	81	79
0 < I_geo < 1	500–1000	90	43	77	85	79	85	85
1 < I_geo < 2	0–500	36	12	41	44	24	50	50
1 < I_geo < 2	500–1000	33	9	44	46	36	52	37
2 < I_geo < 3	0–500	5	9	16	9	15	6	8
2 < I_geo < 3	500–1000	11	6	14	12	15	6	10
3 < I_geo < 4	0–500	5	4	9	4	4	3	3
3 < I_geo < 4	500–1000	3	5	4	2	4	1	5
4 < I_geo < 5	0–500	1	0	0	0	2	2	3
4 < I_geo < 5	500–1000	2	1	0	1	2	0	5
5 < I_geo	0–500	1	5	5	0	12	1	1
5 < I_geo	500–1000	4	6	6	0	1	0	1
Total no. of sites I_geo > 3		16	21	24	7	25	7	18