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River Environment Classification Watershed Waikato (2010) (DEPRECATED)
Ministry for the EnvironmentThe New Zealand River Environment Classification (REC) organises information about the physical characteristics of New Zealand's rivers. Individual river sections are mapped according to physical factors such as climate, source of flow for the river water, topography, and geology, and catchment land cover eg, forest, pasture or urban. Sections of river...Created 1 September 2021 • Updated 3 March 2025 -
Mortality of indigenous tree sp mountain horopito 2002–2014
Ministry for the Environment"The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...Created 2 February 2020 • Updated 3 March 2025 -
Mortality of indigenous tree sp kāpuka 2002–2014
Ministry for the Environment"The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...Created 2 February 2020 • Updated 3 March 2025 -
Lake water quality, state, 2016 - 2020
Ministry for the EnvironmentAdapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "Lake water quality" indicator (available at https://www.stats.govt.nz/indicators/lake-water-quality). We report on eight biological, chemical, and physical lake water quality attributes based on measurements...Created 1 September 2022 • Updated 3 March 2025 -
Particulate matter concentrations 2006–2013
Ministry for the Environment"Particulate matter 10 micrometres or less in diameter (PM10) in the air comprises solid particles and liquid droplets from both natural and human-made sources. PM10 can be emitted from the combustion of fuels, such as wood and coal (eg from home heating and industry), and petrol and diesel (from vehicles). Natural PM10 includes sea salt, dust, pollen,...Created 1 February 2024 • Updated 3 March 2025 -
Extreme wind, 1972 - 2019, state
Ministry for the EnvironmentDATA SOURCE: National Institute for Water and Atmospheric Research (NIWA) [Technical report available at https://www.mfe.govt.nz/publications/environmental-reporting/ministry-environment-atmosphere-and-climate-report-2020-updated] Adapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency Dataset...Created 2 November 2020 • Updated 3 March 2025 -
Marine Environment Classification EEZ 5 Classes (2010)
Ministry for the EnvironmentThe Marine Environment Classification (MEC), a GIS-based environmental classification of the marine environment of the New Zealand region, is an ecosystem-based spatial framework designed for marine management purposes. Several spatially-explicit data layers describing the physical environment define the MEC. A physically-based classification was chosen...Created 2 February 2020 • Updated 3 March 2025 -
Mortality of indigenous tree sp tree fern 2002–2014
Ministry for the Environment"The rates of death (mortality) of indigenous tree species vary across New Zealand. Changes in the state of the environment (such as from browsing pests, large-scale weather events, or climate change) may change the rates of mortality of particular tree species. This in turn may alter forest processes. Repeated surveys of the distribution of mortality...Created 2 February 2020 • Updated 3 March 2025 -
Coastal water quality_all results by site
Ministry for the EnvironmentThis dataset has no description
Created 2 February 2020 • Updated 3 March 2025 -
Deposited sediment in rivers, 2014 - 2019
Ministry for the EnvironmentThis indicator measures the average percentage of streambed covered by fine sediment for areas of smooth, unbroken water in hard-bottomed, wadeable streams and rivers, at 215 sites across six regions assessed at least bi-monthly for two consecutive years between 2014 and 2019. Summary report available at https://www.mfe.govt.nz/publications/fresh-...Created 2 May 2020 • Updated 3 March 2025 -
Sulphur dioxide concentrations, 2004-2021
Ministry for the EnvironmentSulphur dioxide (SO2) is a highly reactive gas formed when fuels containing sulphur, such as coal or petrochemical products (including high-sulphur ship fuel), are burned. It is also produced from industrial processes such as superphosphate fertiliser production and smelting sulphur-containing metal ores. Geothermal and volcanic gases are the main natural...Created 1 December 2021 • Updated 3 March 2025 -
Cultural Health Index scores for waterways, 2005–16
Ministry for the EnvironmentCultural Health Index scores for a waterway is a combination measure of historical cultural use and access, mahinga kai assessment, and water quality assessment from a cultural perspective of a site on a waterway. The Cultural Health Index scores compile this information into a classification system to provide an overall grading of the state of a site and...Created 2 February 2020 • Updated 3 March 2025 -
Oceanic sea surface temperature anomaly
Ministry for the EnvironmentThe ocean waters surrounding New Zealand vary in temperature from north to south. They interact with heat and moisture in the atmosphere and affect our weather. Sea surface temperature changes with climate drivers such as El Niño, and will change with climate change. The sea surface temperature anomaly provides an indication of the heat change in the...Created 2 February 2020 • Updated 3 March 2025 -
Conservation status of marine mammals
Ministry for the EnvironmentNew Zealand has a diverse range of marine mammal species and subspecies, including whales, dolphins, seals, and sea lions. Marine mammals are indicator species for the state of our marine environment. The conservation status of a species relates to its risk of extinction. Many of these species are endemic (only found in) to New Zealand. They are apex...Created 2 February 2020 • Updated 3 March 2025 -
Freshwater pests: Great pond snail
Ministry for the Environment"Freshwater plant and animal pests can have significant negative impacts on ecosystem health by reducing indigenous biodiversity through predation and competition, and destabilising aquatic habitats. Freshwater plant pests can cause economic losses through blocking water intakes for hydroelectricity generation, impeded drainage or irrigation. In addition,...Created 2 February 2020 • Updated 3 March 2025 -
Air pollutant emissions, 2012-2019
Ministry for the EnvironmentThe air pollutant emissions indicator reports on national human-generated (anthropogenic) emissions of particulate matter (PM10 – particles smaller than 10 micrometres and PM2.5 – the subset of PM10 particles that are smaller than 2.5 micrometres), nitrogen oxides (NOx), carbon monoxide (CO), and sulphur dioxide (SO2), between 2012 and 2019. The grouped...Created 1 December 2021 • Updated 3 March 2025 -
River water quality: Macroinvertebrate community index, trends, 1991 - 2020
Ministry for the EnvironmentAdapted by Ministry for the Environment and Statistics New Zealand to provide for environmental reporting transparency. Dataset used to develop the "River water quality: macroinvertebrate community index" indicator (available at https://www.stats.govt.nz/indicators/river-water-quality-macroinvertebrate-community-index). Benthic macroinvertebrates are...Created 1 September 2022 • Updated 3 March 2025 -
Natural river flow statistics, predicted for all river reaches
Ministry for the EnvironmentRiver flow is the quantity of water passing a point over a certain time. Each river or stream has its own natural flow characteristics, such as peak flows following rain or high spring flows from snow melt. Overall, this affects how much water is available for irrigation, drinking water, hydroelectricity generation, and recreational activities. River...Created 2 February 2020 • Updated 3 March 2025 -
Heavy metal concentrations, 2002–17
Ministry for the EnvironmentInhaling particulate matter (PM) containing heavy metals can cause serious health effects (World Health Organization (WHO), 2013). Airborne arsenic is linked to lung cancers (WHO, 2013), and heart, liver, kidney, and nerve damage (Caussy, 2003). Nickel and vanadium are linked to lung and nasal sinus cancers. Lead can impair cognitive function in children...Created 2 February 2020 • Updated 3 March 2025 -
Vehicle Kilometres Travelled
Ministry for the EnvironmentSource: Ministry of TransportCreated 2 February 2020 • Updated 3 March 2025
