Water Nitrate

AUS-ASC-IND-WNI General Moderate confidence

Benchmark Value

0.7 mg/L
Direction: Lower is desirable ↓
Form: MinimumOnly

Scoring Curve

Scoring curve unavailable

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.

Contributing Benchmarks

CompositeFramework Primary MinimumOnly Guard MaximumOnly Guard Point Guard OptimalRange Guard

Evidence & Context

Upper Detrimental Threshold: An upper detrimental threshold is defined by the transition from an oligotrophic to a mesotrophic state. Based on established trophic classification frameworks, this occurs when Total Nitrogen concentrations exceed 0.7 mg/L.

Metric Definition:

Total Nitrogen concentration threshold marking transition from oligotrophic to mesotrophic state

Benchmark Definition:

This benchmark defines the threshold concentration of Total Nitrogen indicating a shift from an oligotrophic to a mesotrophic state, marking a fundamental negative change in ecosystem structure and function.

Justification:

Based on established trophic classification frameworks representing a fundamental negative shift in ecosystem structure and function.

Sources (2)

Preview of Eutrophication (nutrient enrichment) - Western Australian Government
Eutrophication (nutrient enrichment) - Western Australian Government Government

Eutrophication (nutrient enrichment) - Government of Western Australia

View Source
Preview of Nitrogen, phosphorus, and eutrophication in streams - Kansas State University
Nitrogen, phosphorus, and eutrophication in streams - Kansas State University Journal

Nitrogen, phosphorus, and eutrophication in streams - Kansas State University, accessed August 17, 2025,

View Source

Supporting Sources (24)

Additional references from the underlying research that informed this benchmark.

Preview of A Geospatial Database for Effective Mine Rehabilitation in Australia - MDPI, accessed August 17, 2025,
A Geospatial Database for Effective Mine Rehabilitation in Australia - MDPI, accessed August 17, 2025,
Contextual Support Journal

A Geospatial Database for Effective Mine Rehabilitation in Australia - MDPI, accessed August 17, 2025,

View Source
Preview of A review of water quality studies relevant to northern Australia - CSIRO, accessed July 21, 2025,
A review of water quality studies relevant to northern Australia - CSIRO, accessed July 21, 2025,
Contextual Support Journal

Salinity and water quality

View Source
Preview of About Eutrophication and Hypoxia | World Resources Institute, accessed August 17, 2025,
About Eutrophication and Hypoxia | World Resources Institute, accessed August 17, 2025,
Contextual Support GreyLiterature

About Eutrophication and Hypoxia | World Resources Institute, accessed August 17, 2025,

View Source
Preview of Caring for our Australian Alps Catchments, accessed August 28, 2025,
Caring for our Australian Alps Catchments, accessed August 28, 2025,
Contextual Support Journal

Caring for our Australian Alps Catchments

View Source
Preview of Environmental Protection License - Perisher, accessed August 17, 2025,
Environmental Protection License - Perisher, accessed August 17, 2025,
Contextual Support Government

Environmental Protection License - Perisher, accessed August 17, 2025,

View Source
Preview of ENVIRONMENTAL SUSTAINABILITY - Thredbo, accessed August 17, 2025,
ENVIRONMENTAL SUSTAINABILITY - Thredbo, accessed August 17, 2025,
Contextual Support Journal

ENVIRONMENTAL SUSTAINABILITY - Thredbo, accessed August 17, 2025,

View Source
Preview of Eutrophication: View as single page | OpenLearn - The Open University, accessed August 17, 2025,
Eutrophication: View as single page | OpenLearn - The Open University, accessed August 17, 2025,
Contextual Support GreyLiterature

Eutrophication: View as single page | OpenLearn - The Open University, accessed August 17, 2025,

View Source
Preview of Kosciuszko National Park water quality monitoring, accessed August 12, 2025,
Kosciuszko National Park water quality monitoring, accessed August 12, 2025,
Contextual Support Government

Kosciuszko National Park water quality monitoring, accessed August 17, 2025,

View Source
Preview of Limiting nutrients drive mountain stream ecosystem processes along an elevation gradient | Freshwater Science: Vol 40, No 2, accessed August 17, 2025,
Limiting nutrients drive mountain stream ecosystem processes along an elevation gradient | Freshwater Science: Vol 40, No 2, accessed August 17, 2025,
Contextual Support Journal

Limiting nutrients drive mountain stream ecosystem processes along an elevation gradient | Freshwater Science: Vol 40, No 2, accessed August 17, 2025,

View Source
Preview of MINE REHABILITATION: Leading Practice Sustainable Development Program for the Mining Industry, accessed August 1, 2025,
MINE REHABILITATION: Leading Practice Sustainable Development Program for the Mining Industry, accessed August 1, 2025,
Contextual Support Journal

MINE REHABILITATION: Leading Practice Sustainable Development Program for the Mining Industry, accessed July 20, 2025

View Source
Preview of Mine site rehabilitation: the algae advantage - CSIRO, accessed August 17, 2025,
Mine site rehabilitation: the algae advantage - CSIRO, accessed August 17, 2025,
Contextual Support Government

Best Practice Erosion and Sediment Control (BPESC) document, accessed August 1, 2025,

View Source
Preview of N 17.10.18 Web Version - Thredbo, accessed August 17, 2025,
N 17.10.18 Web Version - Thredbo, accessed August 17, 2025,
Direct Evidence Journal

J 22.08.18 Web Version - Thredbo, accessed August 17, 2025,

View Source
Preview of Nitrate concentration in alpine rivers — www.atlas.alpconv.org, accessed August 17, 2025,
Nitrate concentration in alpine rivers — www.atlas.alpconv.org, accessed August 17, 2025,
Contextual Support

Nitrate concentration in alpine rivers — www.atlas.alpconv.org, accessed August 17, 2025,

View Source
Preview of Nitrogen dynamics in alpine soils of south-eastern Australia - CSIRO Publishing, accessed August 17, 2025,
Nitrogen dynamics in alpine soils of south-eastern Australia - CSIRO Publishing, accessed August 17, 2025,
Contextual Support Journal

Nitrogen dynamics in alpine soils of south-eastern Australia - CSIRO ...

View Source
Preview of NSW ski resort cops $230k+ fine for sewage pollution - Travel Weekly, accessed August 17, 2025,
NSW ski resort cops $230k+ fine for sewage pollution - Travel Weekly, accessed August 17, 2025,
Contextual Support GreyLiterature

NSW ski resort cops $230k+ fine for sewage pollution - Travel Weekly, accessed August 17, 2025,

View Source
Preview of Nutrient dynamics in streams and the role of J-NABS - BioOne Complete, accessed August 17, 2025,
Nutrient dynamics in streams and the role of J-NABS - BioOne Complete, accessed August 17, 2025,
Contextual Support Journal

Nutrient dynamics in streams and the role of J-NABS - BioOne Complete, accessed August 17, 2025,

View Source
Preview of Nutrient limitation in Atlantic salmon rivers and streams: Causes, consequences, and management strategies - PMC - PubMed Central, accessed August 17, 2025,
Nutrient limitation in Atlantic salmon rivers and streams: Causes, consequences, and management strategies - PMC - PubMed Central, accessed August 17, 2025,
Contextual Support Journal

Nutrient limitation in Atlantic salmon rivers and streams: Causes, consequences, and management strategies - PMC - PubMed Central, accessed August 17, 2025,

View Source
Preview of Nutrient Limitation of Algal Biomass Accrual in Streams: Seasonal Patterns and a Comparison of Methods - The University of Chicago Press: Journals, accessed August 17, 2025,
Nutrient Limitation of Algal Biomass Accrual in Streams: Seasonal Patterns and a Comparison of Methods - The University of Chicago Press: Journals, accessed August 17, 2025,
Contextual Support Journal

Nutrient Limitation of Algal Biomass Accrual in Streams: Seasonal Patterns and a Comparison of Methods - The University of Chicago Press: Journals, accessed August 17, 2025,

View Source
Preview of Nutrient overloading | Earth Sciences New Zealand - NIWA, accessed August 17, 2025,
Nutrient overloading | Earth Sciences New Zealand - NIWA, accessed August 17, 2025,
Contextual Support Government

Nutrient overloading | Earth Sciences New Zealand - NIWA, accessed August 17, 2025,

View Source
Preview of Nutrients, eutrophication and harmful algal blooms along the freshwater to marine continuum | Request PDF - ResearchGate, accessed August 17, 2025,
Nutrients, eutrophication and harmful algal blooms along the freshwater to marine continuum | Request PDF - ResearchGate, accessed August 17, 2025,
Contextual Support Journal

Nutrients, eutrophication and harmful algal blooms along the freshwater to marine continuum | Request PDF - ResearchGate, accessed August 17, 2025,

View Source
Preview of Review of water quality studies in the Australian Alps, accessed August 12, 2025,
Review of water quality studies in the Australian Alps, accessed August 12, 2025,
Contextual Support Government

Review of water quality studies in the Australian Alps | Australian ...

View Source
Preview of TERN - Australia's Terrestrial Ecosystem Research Network, accessed July 30, 2025,
TERN - Australia's Terrestrial Ecosystem Research Network, accessed July 30, 2025,
Contextual Support GreyLiterature

The Great Western Woodlands TERN SuperSite: ecosystem monitoring infrastructure and key science learnings, accessed May 19, 2025

View Source
Preview of Trends in water quality in a subtropical Australian river-estuary system: Responses to damming, climate variability and wastewater discharges | Request PDF - ResearchGate, accessed August 17, 2025,
Trends in water quality in a subtropical Australian river-estuary system: Responses to damming, climate variability and wastewater discharges | Request PDF - ResearchGate, accessed August 17, 2025,
Contextual Support Journal

Trends in water quality in a subtropical Australian river-estuary system: Responses to damming, climate variability and wastewater discharges | Request PDF - ResearchGate, accessed August 17, 2025,

View Source
Preview of Water - CSIRO, accessed July 16, 2025,
Water - CSIRO, accessed July 16, 2025,
Contextual Support Government

A review of water quality studies relevant to northern Australia - CSIRO, accessed July 25, 2025,

View Source

Context

  • Region Australia
  • Biome Alpine and Subalpine Complex
  • Land Use Industrial & Infrastructure Use
  • Assessment Pristine Reference
  • Evidence Type DegradationThreshold

Lifecycle

  • Status Active
  • Version 1
  • Effective From 16 Mar 2026

Notes

Exceeding this threshold leads to eutrophication and loss of ecological integrity.