Species | Tolerance limit (W Species /W TU ) |
---|---|
Co+2, Na+, Ca+2, Al+3, K+, NO3 −, S2O8 −2, Urea , Glucose | 1000 |
Cu+2 | 800 |
Cd+2, Zn+2, Mn+2, Mg+2, Fe+3 | 500 |
Citrate, Acetate, Ba+2 | 300 |
EDTA, Pb+2, Oxalate | 200 |
Formate, Salicylate, PO4 3− | 100 |
CO3 2− | 80 |
CN− | 65 |
Ni+2 | 40 |
Cl−, Tartaric acid | 20 |
Cr2O7 2−, Ag+ | 5 |
Hg+2 | 2 |