INDUSTRY | SAMPLING POINTS | Pb (mg kg−1) | Cd (mg kg−1) | Cu (mg kg−1) | Cr (mg kg−1) | Ni (mg kg−1) |
BELOXXI | POINT 1 | 13.85 | 1.75 | 12.60 | 4.76 | 0.20 |
POINT 2 | ND | 10.45 | 8.65 | ND | 0.30 | |
NESTLE | POINT 1 | ND | 5.20 | 4.10 | ND | 0.11 |
POINT 2 | 42.35 | 4.80 | 10.20 | ND | 0.20 | |
AVANTI | POINT 1 | ND | 4.95 | 3.05 | 12.80 | 0.41 |
BETA GLASS | POINT 1 | 15.15 | 5.70 | 24.90 | 4.82 | 0.29 |
POINT 2 | ND | 8.15 | 2.75 | ND | 0.51 | |
WHO Standard Tolerance Limit | 300 | 3.00 | 50 | 100 | 50 |