Grid name | pH | V | Cr | Mn | Co | Ni | Cu | Zn | As | Se | Cd | Hg | Pb |
609 | 7.02 | 285 | 492 | 31,354 | 2676 | ND | 81 | 27 | ND | ND | ND | ND | 86 |
410 | 7.44 | 161 | 224 | 6435 | 1977 | ND | 93 | 95 | ND | ND | ND | ND | ND |
703 | 7.41 | 78 | 152 | 579 | ND | 37 | 84 | 286 | ND | ND | ND | ND | 86 |
310 | 6.86 | 84 | 64 | 133 | ND | 41 | 18 | 33 | 11 | ND | ND | ND | 20 |
402 | 7.20 | 110 | 89 | 580 | ND | ND | 33 | 85 | ND | ND | ND | ND | 17 |
702 | 7.46 | 114 | 77 | 554 | ND | 50 | 45 | 85 | ND | ND | ND | ND | 21 |
711 | 7.32 | 100 | 88 | 682 | ND | ND | 50 | 76 | 12 | ND | ND | ND | 25 |
312 | 6.95 | 101 | 59 | 520 | ND | 31 | 40 | 74 | ND | ND | ND | ND | 22 |
203 | 7.20 | 75 | 46 | 519 | ND | ND | ND | 72 | ND | ND | ND | ND | 55 |
710 | 7.29 | 100 | 72 | 551 | ND | 39 | 44 | 93 | ND | ND | ND | ND | 24 |
206 | 7.12 | 117 | 82 | 574 | ND | 31 | 39 | 94 | ND | ND | ND | ND | 30 |
208 | 7.26 | 102 | 75 | 452 | ND | ND | 29 | 78 | 10 | ND | ND | ND | 26 |
313 | 7.15 | 89 | 50 | 400 | ND | ND | 30 | 55 | 16 | ND | ND | ND | 22 |
207 | 7.22 | 93 | 89 | 536 | ND | ND | 28 | 99 | 15 | ND | ND | ND | 21 |
Standard limit (≤) | / | / | 200 | / | / | 50 | 100 | 250 | 30 | / | 0.30 | 0.50 | 300 |