Parameters overview
| Category | Example parameters |
| N package | Total nitrogen (N) |
| Drain water | Nitrogen (N) and phosphate (P₂O₅) |
| Biological air *) | Ammonium nitrogen (N-NH₄), nitrite nitrogen (N-NO₂), nitrate nitrogen (N-NO₃), pH |
| Chemical air scrubber water *) | Ammonium nitrogen (N-NH₄), ammonium sulphate ((NH₄)₂SO₄), nitrate nitrogen (N-NO₃), sulphate (SO₄), pH |
| Extended* | Phosphorus (P), ammonium nitrogen (N-NH₄), nitrate nitrogen (N-NO₃), sulphate (SO₄), pH |
*) Testing is subcontracted to an external laboratory.*