Search LAWA’s learn section for factsheets and glossary entries

• A
  Aeolian (dune) lake
  Aerobic
  Aesthetic/amenity value
  Air Quality Site Status
  Algae
  Algal bloom
  Allocation
  Ammonia
  Ammoniacal nitrogen
  Ammonium
  Amount available to consent
  Annual percentage
  Annual PM10
  Annual PM2.5
  Anoxic
  Aquatic
  Aquifer
  Arsenic
  ASPM
  Attribute band
  Australian-New Zealand Guidelines (ANZG)

• B
  Bacteria
  BAM
  BAM-Nephelometer
  Banded Kokopu
  Benthic
  Benthic Health Model
  Benzene
  Bioaccumulate
  Biochemical oxygen demand (BOD)
  Biodiversity
  Biogenic (habitat)
  Biomass
  Black carbon
  Black Disc
  Blue-green algae
  Box and Whisker Plots
  Brackish
  Brackish lake
  Braided river
  Breach
  Broad land cover class
  Built features

• C
  Cadmium (Cd)
  Carbon monoxide
  Catchment
  Catchment Size
  Chloride
  Chlorophyll a
  Chromium (Cr)
  Citizen science
  Clarity
  Clarity tube
  Climate change
  Closed canopy
  Comparing consented and used water
  Concentration
  Condensation
  Conductivity
  Confluence
  Consented and measured volume
  Consented as a percentage of available
  Consented volume
  consumptive
  Contact recreation
  Contaminants
  Contamination
  Copper (Cu)
  Cross-section
  Cumec
  Current water level
  Cyanobacteria

• D
  Daily PM10
  Daily PM2.5
  Dam
  Deposited sediment
  Detailed land cover class
  Detection limit
  Detritus
  Didymo (Didymosphenia geminata)
  Diffuse source discharge
  Discharge
  Dissolved inorganic nitrogen (DIN)
  Dissolved oxygen (DO)
  Dissolved reactive phosphorus (DRP)
  Distribution
  DSDEs

• E
  1 in 10 year Exceedence
  1 in 25 year Exceedence
  1 in 5 year Exceedence
  1 in 50 year Exceedence
  E-BAM
  E. coli
  Ecology
  Ecosystem
  Ecosystem function
  Ecosystem resilience
  Ecosystem services
  Ecotoxicity
  Effects Range Low (ERL)
  Effluent
  Electrical conductivity
  Emission
  Endemic
  Enterococci
  Environmental indicator
  Environmental reporting
  Environmental Response Criteria (ERC)
  Environmental values
  Epilimnion
  EPT
  Erosion
  Erosion control
  Erosion susceptibility
  Escherichia coli
  Estuary
  Estuary habitat diversity
  Estuary macrofauna
  Estuary macrofauna score
  Eutrophic
  Eutrophication
  Evaporation
  Evapotranspiration
  Exceedance
  Exotic
  Exotic land cover

• F
  Faecal Indicators
  Faecal matter
  Fidas
  Filamentous algae
  Flood
  Floodplain
  Flow
  Flow adjustment
  Flow regime
  Food web
  Fossil fuel
  Freshwater
  Freshwater objectives

• G
  Geographic Information System (GIS)
  Geomorphic lake type
  Geothermal lake
  Giant Kokopu
  Glacial lake
  Groundwater
  Guideline

• H
  Habitat
  Hapū
  Healthy estuaries
  Heavy metal(s)
  High volume sampler
  Highest flow ever recorded
  Home heating sources of air pollution
  Human pressure
  Hydrocarbons
  Hydrology
  Hydrosystem
  Hypolimnion
  Hyporheic zone

• I
  ICOLL
  Inanga
  Indeterminate trend
  Indicators
  Indigenous land-cover
  Indigenous species
  Indoor sources of air pollution
  Industrial sources of air pollution
  Inorganic matter
  Internal loading
  Intertidal
  Introduced species
  Invasive Impact Index
  Invasive species
  Invertebrate
  Irrigation
  Iwi

• K
  Kaitiaki
  Kaitiakitanga
  Kaumātua
  Koaro

• L
  Lake Level
  Lake Size
  Lake Submerged Plant Indicators
  LakeSPI
  Land cover
  Land cover classes
  Land Cover Database (LCDB)
  Land use
  Landscapes
  Landslide lake
  Leaching
  Lead (Pb)
  Limit
  Liquid waste
  Live flow
  Load
  Longfin Eel
  Lowest flow ever recorded

• M
  1-Day MALF
  7-day MALF
  Macroinvertebrate Community Index (MCI)
  Macroinvertebrates
  Macrophytes
  Mahinga kai
  main stem
  Mana
  Mātauranga Māori
  Mauri
  Maximum Depth
  Mean annual low flow (MALF)
  Median
  Median annual flow
  Medium land cover class
  Mercury (Hg)
  Mesotrophic
  Micrograms per cubic metre (µg/m3)
  Microtrophic
  Milligrams per cubic metre (mg/m3)
  Mixing pattern
  Model/modelling
  Monitoring
  Monitoring network
  Monitoring site
  Monthly median (rainfall)
  Mud content

• N
  National Ambient Air Quality Guidelines (2002)
  National bottom line
  National Environmental Monitoring Standards
  National Environmental Standards
  National Environmental Standards for Air Quality (NES-AQ)
  National Objectives Framework (NOF)
  National Policy Statement (NPS)
  National Policy Statement for Freshwater Management (NPS-FM 2020)
  National River Water Quality Network (NRWQN)
  Native
  Native Condition Index
  Natural features
  Natural sources of air pollution
  Nickel (Ni)
  Nitrate nitrogen (nitrate)
  Nitrified
  Nitrite nitrogen
  Nitrogen
  Nitrogen dioxide
  Non-point source discharge
  NTU
  Nuisance weed
  Nutrient
  Nutrient run-off

• O
  Objective
  OECD
  Oligotrophic
  Optical sampler
  Organic contaminants
  Organic matter
  Organic pollution
  Outdoor burning sources of air pollution
  Oxygen
  Ozone

• P
  Parameter
  Particulate matter
  Partisol
  Passive sampling
  Pathogen
  Peat lake
  Percentage of mean level (bore)
  Percentage of median (rainfall)
  Percentage of time exceeded
  Percentile
  Periphyton
  Pesticides
  pH
  Phosphorus
  Photosynthesis
  Phycocyanin
  Phytoplankton
  Plankton
  PM
  PM10
  PM10 exceedances (last year)
  PM10 exceedances (year to date)
  PM2.5
  PM2.5 exceedances (last year)
  PM2.5 exceedances (year to date)
  Point-source discharge
  Pollutant
  Pollution
  Polymictic
  Population
  Pressure
  Primary Production
  Probable Effects Level (PEL)

• Q
  QMCI
  Quartile

• R
  Rain in previous month
  Rainfall annual total
  Rainfall last 12 months
  Rainfall last 24 hours
  Rainfall last 7 days
  Rainfall last month
  Rainfall this month
  Reach
  Recreational water quality
  Regional councils
  Relative breakdown
  Relative Volume
  Remote sensing
  Residence time
  Resilience
  Resource consent
  Resource Management Act 1991 (RMA)
  Respiration
  Riparian
  Riparian planting
  River Environment Classification (REC)
  Riverine lake
  Run off to sea
  Run-off

• S
  Screening method
  Secchi disc
  Sediment
  Sedimentation
  Semi-quantitative Macroinvertebrate Community Index (SQMCI)
  Shoreline lake
  Shortfin Eel
  SIDEs
  Silver (Ag)
  Spawning
  SSRTREs
  Standard method
  State
  State and Trend
  State of the Environment (SOE) monitoring
  State of the Environment (SOE) reporting
  Stock exclusion
  Stormwater
  Stratified (stratify)
  Stream order
  Stressor
  Sulphur dioxide
  Summer Season Monitoring
  Supertrophic
  Surface water
  Suspended fine sediment
  Suspended sediment

• T
  T640x
  Tangata whenua
  Taonga
  Taxa Richness
  Taxon
  Te Mana o te Wai
  Te Uru Kahika - Regional and Unitary Councils Aotearoa
  Tectonic lake
  Telemetry
  Temperature inversion
  TEOM
  TEOM-FDMS
  Territorial authority
  Thermocline (or metalimnion)
  Threats to estuaries
  Threshold Effects Level (TEL)
  Total DDT
  Total Nitrogen (TN)
  Total Oxidised Nitrogen (TON)
  Total PAH
  Total Phosphorus (TP)
  Toxic
  Toxic algae
  Traffic sources of air pollution
  Trend
  Tributaries
  Trophic Level Index
  Tūpuna
  Turbidity

• U
  Understory vegetation
  Unhealthy estuaries
  Unitary authorities

• V
  Variable
  Visual Clarity
  Volatile organic compound
  Volcanic lake
  Volume Consented Used

• W
  Wadeable
  Wāhi tapu
  Wastewater
  Water body
  Water clarity
  Water column
  Water Management Zone
  Water quality
  Water resources
  Water take(s)
  Water temperature
  Waterway length
  Weather conditions
  Weed
  Wetland
  Wetland area (Nationally Important Wetlands)
  Wetland protection
  Wetlands
  Whānau
  Winter day percentage
  Woody vegetation
  World Health Organization Air Quality Guidelines

• Z
  Zinc (Zn)
  Zooplankton