✨ Freshwater Management Standards
4 JULY 2014 NEW ZEALAND GAZETTE, No. 71 2013
| Value | Ecosystem health |
|---|---|
| Freshwater Body Type | Lakes and rivers |
| Attribute | Ammonia (Toxicity) |
| Attribute Unit | mg NH₄-N/L (milligrams ammoniacal-nitrogen per litre) |
| Attribute State | Numeric Attribute State | Narrative Attribute State |
|---|---|---|
| Annual Median | Annual Maximum | |
| A | ≤0.03 | ≤0.05 |
| B | >0.03 and ≤0.24 | >0.05 and ≤0.40 |
| C | >0.24 and ≤1.30 | >0.40 and ≤2.20 |
| National Bottom Line | 1.30 | 2.20 |
| D | >1.30 | >2.20 |
- Based on pH 8 and temperature of 20ºC. Compliance with the numeric attribute states should be undertaken after pH adjustment.
Next Page →
NZ Gazette 2014, No 71
✨ LLM interpretation of page content
🏛️
Freshwater Management Standards for Rivers
(continued from previous page)
🏛️ Governance & Central AdministrationRivers, Ecosystem Health, Ammonia Toxicity, Water Quality, Environmental Standards