Water Nitrate
Benchmark Value
Scoring Curve
The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.
Evidence & Context
Lower Critical Threshold: Not identified as a concern for aquatic ecosystem health in this context; natural levels are often very low.
Lower critical threshold for water nitrate concentration below which ecosystem health might be compromised.
This benchmark indicates that no lower critical threshold for water nitrate concentration is identified as a concern in alpine and subalpine aquatic ecosystems, reflecting naturally low levels.
Evidence indicates no relevant lower critical threshold for nitrate in these naturally oligotrophic systems; low nitrate is typical and not harmful.
Sources (1)
Australian and New Zealand Guidelines for Fresh and Marine Water Quality (ANZECC & ARMCANZ 2000) - Default trigger values for physical and chemical stressors for south-east Australia; Upland rivers. As cited in: Peet Limited (undated). Googong Urban Development Environmental Impact Statement - Chapter 7 Water Quality and Hydrology.
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
Northern Territory Government (2020) Darwin Harbour Region Water Quality Objectives, Report Card Section 3.0.
View Source