|
| EDI | ||||||
| Cr | Ni | Cu | Zn | As | Cd | Pb | |
| December | 6 × 10−4 | 0.02 | 1.35 | 24.8 | 4 × 10−5 | 1 × 10−5 | 2 × 10−4 |
| January | 6 × 10−4 | 0.05 | 1.72 | 16.1 | 4 × 10−5 | 1 × 10−5 | 2 × 10−4 |
| March | 0.21 | 0.04 | 1.76 | 24.0 | 0.05 | 1 × 10−5 | 2 × 10−4 |
| April | 6 × 10−4 | 0.19 | 1.69 | 17.4 | 0.06 | 1 × 10−5 | 2 × 10−4 |
| May | 0.54 | 0.70 | 1.89 | 30.8 | 0.04 | 1 × 10−5 | 2 × 10−4 |
| June | 6 × 10−4 | 0.25 | 1.21 | 17.7 | 0.04 | 1 × 10−5 | 2 × 10−4 |
| PTDI a | 300 | 14 | 500 | 300 | 214 | 0.8 | 1.5 |