Element | Score Index (Sj) | Weightage Factor (Wj) | |||||
5 | 4 | 3 | 2 | 1 | 0 | ||
Mn | <300 | 301 - 900 | 901 - 1200 | 1201 - 1500 | 1201 - 1400 | >1500 | 1 |
B | <3.0 | 3.0 - 5.0 | 5.0 - 7.0 | 7.0 - 9.0 | 9.0 - 11.0 | >11.0 | 1 |
Zn | <0.151 | 0.151 - 0.300 | 0.301 - 0.500 | 0.501 - 0.700 | 0.701 - 0.90 | >0.90 | 1 |
Ti | <15 | 15.1 - 20 | 20.1 - 25 | 25.1 - 30 | 30.1 - 35 | >35 | 1 |
Sn | <2 | 2.1 - 3 | 3.1 - 4 | 4.1 - 5 | 5.1 - 6 | >6 | 1 |
Sr | <1 | 1.1 - 10 | 10.1 - 20 | 20.1 - 30 | 30.1 - 40 | >40 | 1 |
Sb | <1 | 1.1 - 2 | 2.1 - 3 | 3.1 - 4 | 4.1 - 5 | >5 | 2 |
Ba | <100 | 100 - 200 | 200 - 300 | 300 - 400 | 400 - 500 | >500 | 2 |
Li | <2 | 2.1 - 4 | 4.1 - 6 | 6.1 - 8 | 8.1 - 10 | >10 | 2 |
Be | <1 | 1.1 - 5 | 5.1 - 10 | 10.1 - 15 | 15.1 - 20 | >20 | 2 |
Co | <10 | 10.0 - 20.0 | 20.1 - 30.0 | 30.1 - 40.0 | 40.1 - 50.0 | >50 | 2 |
Mo | <2 | 2.1 - 4.0 | 4.1 - 6.0 | 6.1 - 8.0 | 8.1 - 10. | >10 | 2 |
Cu | <51 | 51 - 100 | 101 - 200 | 201 - 400 | 401 - 600 | >600 | 2 |
V | <10 | 10.1 - 30 | 30.1 - 50 | 50.1 - 70 | 70.1 - 90 | >90 | 2 |
Ni | <21 | 21 - 40 | 41 - 80 | 81 - 120 | 121 - 160 | >160 | 2 |
Tl | <0.15 | 0.15 - 0.25 | 0.26 - 0.35 | 0.36 - 0.55 | 0.56 - 0.75 | >0.75 | 2 |
Se | <0.5 | 0.5 - 1.5 | 1.6 - 2.5 | 2.6 - 3.5 | 3.6 - 7.5 | >7.5 | 3 |
Pb | <100 | 100 - 150 | 150 - 200 | 200 - 250 | 250 - 300 | >300 | 3 |
Cr | <51 | 50 - 100 | 100 - 150 | 150 - 200 | 200 - 250 | >250 | 3 |
Cd | <0.3 | 0.3 - 0.6 | 0.7 - 1.0 | 1.1 - 2 | 2.0 - 4.0 | >4.0 | 5 |
As | <4 | 4.0 - 8.0 | 8.1 - 12 | 12.1 - 16.0 | 16.1 - 22.0 | >22 | 5 |
Hg | <0.025 | 0.025 - 1.0 | 0.1 - 0.2 | 0.21 - 0.3 | 0.31 - 0.4 | >0.4 | 5 |