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The 55 pages that link to Water quality, each with the reason it gives.

• Dissolved oxygenNarrower topic: Dissolved oxygen is a core indicator used in water-quality assessment.

• Water pollutionNarrower topic: Water pollution is one cause of degraded water quality, but quality also reflects natural conditions.

• Freshwater ecosystemRelated: Water-quality measurements help assess stress and habitat conditions in freshwater systems.

• Seagrass meadowRelated: Meadows can trap particles and absorb nutrients, though excess inputs can overwhelm them.

• Rainwater harvestingRelated: Collected rain may contain contaminants from the atmosphere, catchment, or storage.

• Riparian zoneRelated: Riparian vegetation can intercept sediment and nutrients before they reach streams.

• Freshwater ecologyRelated: Ecological assessment links water conditions to organism health and ecosystem function.

• River dischargeRelated: Discharge controls pollutant dilution, transport, and downstream loads.

• Chemical oxygen demandNarrower topic: COD is one indicator used to characterize organic pollution in water.

• TurbidityNarrower topic: Turbidity is one indicator used to characterize water's physical condition.

• Water securityRelated: Reliable supply is not secure when contamination makes water unsafe.

• Atomic absorption spectroscopyRelated: The technique measures metals such as lead and copper in water samples.

• Peatland restorationRelated: Rewetting can alter dissolved carbon and nutrient exports from degraded peat soils.

• Water purificationNarrower topic: Purification is judged against the quality needed for its intended purpose.

• Aquatic ecosystemRelated: Water quality measures help identify conditions that stress aquatic organisms.

• Thermal pollutionNarrower topic: Temperature is one measurable dimension of water quality.

• Water supply networkRelated: Network conditions can affect the quality of water delivered to users.

• Indicator speciesRelated: Aquatic indicator species can reveal nutrient pollution, oxygen stress, and contamination.

• LimnologyNarrower topic: Limnological observations provide the evidence used to assess inland-water quality.

• ContaminationRelated: Water contamination is assessed by measuring hazards against intended uses and safety standards.

• Drinking waterNarrower topic: Drinking-water safety is one use-specific judgment of overall water quality.

• Mass concentrationRelated: Contaminants and dissolved substances are often reported as mass per water volume.

• River regulationRelated: Reservoir retention and altered releases can change water temperature and oxygen levels.

• Wetland lossRelated: Wetland loss can remove natural filtration of sediments, nutrients, and pollutants.

• Environmental chemistryRelated: Water-quality analysis translates contaminant chemistry into conditions relevant to ecosystems and people.

• Tidal prismRelated: Tidal exchange estimated by the prism affects how pollutants and nutrients are diluted or retained.

• AquaponicsRelated: Fish, nitrifying microbes, and plants impose overlapping limits on temperature, oxygen, and pH.

• Water, sanitation and hygieneRelated: A source may be accessible yet unsafe because contamination can occur throughout delivery and storage.

• MayflyRelated: Pollution and oxygen levels influence which mayfly species can persist.

• Peatland drainageRelated: Drainage can mobilize dissolved carbon, nutrients, and metals into receiving waters.

• Recirculating aquaculture systemNarrower topic: Temperature, pH, oxygen, and nitrogen compounds determine whether reused water remains suitable for stock.

• Water chemistryNarrower topic: Water chemistry supplies the chemical evidence used in broader quality assessments.

• CaddisflyRelated: Pollution and habitat degradation affect which caddisflies can persist in a waterbody.

• Catchment areaRelated: A catchment’s soils, land uses, and discharges shape water quality at its outlet.

• Chemical compositionRelated: Measured dissolved substances reveal a water sample’s chemical makeup.

• Riparian forestRelated: Riparian trees and soils can trap sediment and absorb nutrients before they reach streams.

• Freshwater conservationRelated: Pollution control preserves conditions freshwater species need to survive.

• Universal indicatorRelated: A broad-range indicator can screen water samples for unusual acidity or alkalinity.

• MusselRelated: Mussel filtration and survival can reflect changes in local water conditions.

• Ion chromatographyRelated: Ion chromatography measures dissolved anions and cations used to assess water composition.

• River ecosystemRelated: Temperature, oxygen, pollutants, and nutrients directly affect river organisms.

• Sanitary engineeringRelated: Standards for water quality determine which treatments and safeguards are needed.

• WatercressRelated: Watercress cultivation depends on clean water, since edible leaves contact the growing water.

• Ellen Swallow RichardsRelated: Richards developed systematic ways to assess water for contamination and public use.

• Freshwater pearl musselRelated: Sensitive mussel populations can reveal damaging pollution and nutrient enrichment.

• PlecopteraRelated: Sensitive stonefly taxa can signal changes in stream water conditions.

• Tap waterNarrower topic: Tap-water safety and taste are assessed through distinct measures of water quality.

• CladoceraRelated: Changes in cladoceran communities can signal shifts in nutrients, pollutants, or habitat conditions.

• Distilled waterNarrower topic: Distillation changes several quality measures, but suitability still depends on the intended use.

• Lake TritrivaRelated: Monitoring water quality helps assess pressures on the lake and its aquatic life.