Publication Search
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August 2010The report updates an analysis of trends in water quality between 1989 and 2003 which was summarised in Environment New Zealand 2007. Read more
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October 2012The latest indicator update providing information on the pressure waste disposal places on New Zealand’s environment, using the solid waste disposal indicator. Read more
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April 2019This report summarises analysis methods and outcomes for modelling nitrate-nitrogen leaching from livestock in New Zealand, from 1990 to 2017. Read more
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October 2007The 2006/07 National Landfill Census report provides information on the state of play of landfill sites across New Zealand in 2006/07. Read more
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May 2020This report presents research conducted by Lincoln University on the willingness to pay for the various attributes associated with New Zealand’s green premium. Read more
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May 2019This report considers options for New Zealand to manage the effects of fluctuations in recycling material commodity prices on our resource recovery sector. Read more
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July 2009The latest indicator update providing information on the pressure energy demand and the supply of energy and electricity generation places on New Zealand’s environment. Read more
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May 2020This Castalia report estimates the administrative costs imposed under the Action for healthy waterways package for New Zealand’s 16 regional councils. Read more
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May 2019This report presents and tests a range of macroinvertebrate metrics for New Zealand streams and rivers that are sensitive to changes in sediment and periphyton. Read more
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October 2019This NIWA consultant report provides analysis of state and trends in a number of water quality variables in urban rivers and streams in New Zealand. Read more
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May 2005This paper assesses kerbside organic waste collections, in New Zealand and overseas, and identifies matters for territorial authorities to consider before implementing a collection of this nature. Read more
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May 2010The latest indicator update providing information on the state of New Zealand’s air, measuring four air pollutants: nitrogen dioxide; carbon monoxide; sulphur dioxide; and ground-level ozone. Read more
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July 2015In 2014, the Ministry for the Environment commissioned KPMG to research economic barriers to tyre recycling in New Zealand. This report presents the findings of that research. Read more
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March 2020Phormidium (now called Microcoleus) is a cyanobacterium (toxic algae) that grows in some New Zealand rivers. Read more
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October 2016'Our marine environment 2016' provides an overview of the pressures New Zealand's marine environment faces, how it is changing, and the impacts on our biodiversity, economy, and way of life. Read more
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March 2020Phormidium (now called Microcoleus) is a cyanobacterium (toxic algae) that grows in some New Zealand rivers. It produces neurotoxins called anatoxins and ingestion of cyanobacteria mats has caused numerous dog deaths. Read more
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March 2003The 2002 Landfill Review and Audit provides a picture of the risks associated with landfills in New Zealand by assessing relative risks on a consistent basis nationwide using the Landfill Rapid Screening System Read more
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March 2020Phormidium (now called Microcoleus) is a cyanobacterium (toxic algae) that grows in some New Zealand rivers. Read more
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October 2013The Ministry for the Environment commissioned ACIL Allen Consulting to undertake a cost-benefit analysis of sorting options for e-waste plastics being recycled in New Zealand that potentially contain brominated flame retardants. Read more
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February 2017Sediment is an important contaminant in New Zealand freshwaters. This report presents the development of an analytical framework to empirically relate various key instream measures of sediment to catchment sediment loads. Read more
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May 2018The Managing Upstream project aims to help inform management decisions when establishing freshwater objectives under the Freshwater NPS and increase knowledge on the state of different estuary types in New Zealand. Read more
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May 2018The Managing Upstream project aims to help inform management decisions when establishing freshwater objectives under the Freshwater NPS and increase knowledge on the state of different estuary types in New Zealand. Read more
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May 2019This report commissioned by the National Resource Recovery Taskforce analyses the resource recovery sector in New Zealand and the impacts on recycling following fluctuations in recycling material commodity prices as markets changed. Read more
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August 2020This report provides recommendations on opportunities to standardise domestic kerbside collections of waste in New Zealand to increase consistency, reduce confusion for householders, improve material quality and reduce residual rubbish to landfill. Read more
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June 2006This report assesses the state of knowledge and consensus on the environmental and health impacts of post-consumer waste electronic and electrical equipment, within the context of New Zealand landfills and potential illegal dumping. Read more
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March 2008This technical report estimates the extent of dioxin contamination at sawmill sites in New Zealand where pentachlorophenol (known as PCP) was used as a timber treatment in sprays or dips until its withdrawal in 1988. Read more
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December 2008The 2008 environmental report card providing information on the area of New Zealand’s marine areas with legal protection. This report card has been superseded by the Marine Protected Areas indicator update published in 2012. Read more
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June 2016This report presents the findings of a review of continuous dissolved oxygen data in New Zealand including an assessment of observed dissolved oxygen concentrations in relation to the National Objectives Framework (point source) band thresholds. Read more
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May 2020This report presents the modelled results of the impact of the National Policy Statement for Freshwater Management (2017) and two variants of the Essential Freshwater package on New Zealand’s economy in 2030 and 2050. Read more
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February 2009This report card provides information on the state of New Zealand’s air, measuring particulate matter – PM10. The report card has been superseded by the Air quality particulate matter – PM10 indicator update published in October 2012. Read more
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May 2010This report is one of two prepared for the Ministry for the Environment by NIWA, which update national indicator data for river water quality in New Zealand and help provide the evidence base for policy and decision makers. Read more
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November 2010This environmental report card is one of a series that provides information on New Zealand’s fishing activity from an environmental perspective. Total commercial catch and stock status are used to report on fish stocks under the quota management system (QMS). Read more
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September 2009This report provides an update of results for indicators of groundwater quality in New Zealand. It summarises average water quality at almost 1000 monitoring sites over the period 1995-2008, as well as trends at the same sites within that period of time. Read more
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May 2018Phormidium is a potentially toxic, mat-forming benthic cyanobacterium found in an increasing number of New Zealand rivers. This report outlines a study which assessed Phormidium toxin levels in the Cardrona (Otago), Mataura (Southland) and Hutt (Wellington) Rivers in 2017. Read more
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March 2010This snapshot report is one of a series that provides information on New Zealand’s fishing activity from an environmental perspective. To report on seabed trawling, the area trawled by commercial trawlers and the types of fish found in different trawled areas are estimated. Read more
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December 2018Ministry for the Environment, in partnership with Bay of Plenty Regional Council, commissioned Perrin Ag Consultants Ltd and Manaaki Whenua Landcare Research to assess the farm/orchard-gate economic impact of applying a range of mitigation practices to reduce losses of nitrogen, phosphorus, E. coli and sediment. Read more
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February 2017This report has been produced to test potential consequences of setting freshwater objectives for hydro scheme operations. Modelling was undertaken of a selection of various scenarios involving an increase in minimum flows in selected rivers to assess the impact of draft proposals to amend the NPS Freshwater Management on the New Zealand electricity system. Read more
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September 2015Citizen science is emerging as a new source of data that could potentially be used in environmental monitoring and reporting. This project looked at the Garden Bird Survey as an example of a citizen science dataset. Read more
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May 2020This report summarises work to evaluate load reductions required to meet the new National Policy Statement for Freshwater Management's nutrient-related bottom lines. Read more
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April 2010This report informs the ‘environmental flows and water measuring’ and ‘water quality limits’ projects commissioned as part of the New Start for Fresh Water programme in 2009. Read more
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September 2019As part of the Essential Freshwater programme, the Government is considering changes to nitrogen and phosphorus regulations. This study aimed to determine the impact of the proposed new nitrogen regulation. Read more
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December 2000The Stream Periphyton Monitoring Manual describes a standard set of methods for regional councils, consultants and researchers to collect and analyse data on periphyton for resource surveys, impact assessments/monitoring, state of environment reporting and research studies. Read more
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November 2010This report presents a summary of the regional council consent data for water takes between 2009–10. The information in the report has been used to update the freshwater demand environmental indicator. Read more
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April 2020Our freshwater 2020 examines the most pressing issues on our freshwater. Read more
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April 2019This summary provides an overview of Environment Aotearoa 2019. Read more
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October 2015Environment Aotearoa 2015 provides an overall picture of our environment across the air, atmosphere and climate, fresh water, land and marine domains and shows interactions between each domain. Read more
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April 2019Environment Aotearoa 2019 provides an overview of the state of our environment. Using five broad themes the report presents nine priority environmental issues. Read more
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December 2019This report assesses the costs and benefits of changes to the waste disposal levy. Read more
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May 2014The technical report commissioned to provide us with some of the data used in the 2014 Air domain report. Read more
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October 2020Our atmosphere and climate 2020 shows how, why, and what is happening to our climate and how the changing climate is beginning to affect the things we care about. Read more