| Chemicals | Characters | qi [(kg・d)/mg] | RfD [mg/(kg・d)] |
| Iron (Fe) | Non carcinogens | / | 0.3 |
| Manganese (Mn) | Non carcinogens | / | 0.14 |
| Volatile phenol, VP | Non carcinogens | / | 0.3 |
| Cyanide (CN−) | Non carcinogens | / | 0.037 |
| Fluoride (F−) | Non carcinogens | / | 0.06 |
| Lead (Pb) | Non carcinogens | / | 0.0014 |
| Mercury (Hg) | Non carcinogens | / | 0.0003 |
| Ammonia nitrogen ( ) | Non carcinogens | / | 0.97 |
| Nitrate ( ) | Non carcinogens | / | 1.6 |
| Copper (Cu) | Non carcinogens | / | 0.04 |
| Zinc (Zn) | Non carcinogens | / | 0.3 |
| Selenium (Se) | Non carcinogens | / | 0.005 |
| Arsenic (As) | Carcinogens | 15 | / |
| Chromium (Cr6+) | Carcinogens | 41 | / |
| Cadmium (Cd) | Carcinogens | 6.1 | / |