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February 2018The report provides an inventory of the annual distribution of mercury and mercury-containing goods and materials in New Zealand from anthropogenic (man-made) sources, for a base year of 2016. It builds on the information in the previous 2012 and 2008 mercury inventories. Read more -
August 2003This technical report provides information on the sources of fine particles (PM10 – particles less then 10 microns in diameter) in New Zealand. Read more -
November 2003This document summarises information about the main sources of air pollutants in New Zealand towns and cities. Read more -
October 2018This report details a national inventory for 2015 for priority air pollutants. Read more -
October 2015This infographic provides a snapshot of New Zealand’s environment. It presents key findings from ‘Environment Aotearoa 2015’ in a graphic for use online or as a printed poster. Read more -
October 2018This report presents a stocktake of black carbon concentrations measured in atmospheric aerosol samples collected at approximately 40 air quality monitoring sites across New Zealand and identifies the primary sources of the black carbon. Read more -
June 2001This report is a step-by step guide to preparing emission inventories in New Zealand. It contains information on the purpose, process, methodology and application of emission inventory investigations. Read more -
August 2001This 2001 report estimates the value for New Zealand's export trade of our clean green image. The report focuses on three export areas: dairy, inbound tourism and organic produce. Read more -
May 2000This report describes the approach taken for estimating the water quality 'trigger' values for ecosystem protection used in the 2000 revision of the Australian and New Zealand Guidelines for Fresh and Marine Water Quality (ANZECC 2000). The guidelines were revised in August 2018. Read more -
June 2007This plain English brochure contains information about PM10 air pollution and how it is monitored, and the national environment standards for air quality. Read more -
February 2014This document explains the proposed new approach to environmental reporting in New Zealand introduced by the Environmental Reporting Bill. The Bill, tabled in February 2014, proposes greater clarity over the roles and responsibilities for environmental reporting in New Zealand. Read more -
October 2000This is the second of two documents prepared for the Ministry on the effects of air pollution on atmospheric visibility in New Zealand. Read more -
June 2005The Marine Environment Classification (MEC) provides a general map that shows the variation in both the physical and biological characteristics of New Zealand's marine area within our Exclusive Economic Zone. Read more -
August 2003This report summaries the results of air quality monitoring of fine particles in New Zealand from 1988 to 2001. Historical measurements of total suspended particles over the period 1964 - 2000 (Auckland) and 1983 - 2001 (Hamilton) are also presented to analyse trends. Read more -
August 2003This technical report on the health effects of PM10 (particles less than 10 microns in diameter) in New Zealand describes the potential health effects caused by inhaling PM10 in New Zealand towns and cities. Read more -
April 2018This infographic provides a snapshot of New Zealand’s land. It presents key findings from Our land 2018. Read more -
February 2006The Value Case for Sustainable Building in New Zealand provides information that can be used to demonstrate the business case for sustainable buildings to key decision-makers. It contains case studies, overseas trends, and potential drivers for sustainable building in the future. Read more -
August 2002This report provided background information for developing an updated odour assessment and management guideline for New Zealand. Read more -
August 2020This 2007 report evaluated the effects of air pollution in 67 urban areas across New Zealand on the 2001 population and ambient monitoring data. Read more -
May 2004This report outlines the cost and the benefits of the proposed National Environmental Standards to Control Greenhouse Gas Emissions from Landfills. Read more -
October 2014This report provides recommendations for new sites to improve representativeness in the New Zealand river environmental monitoring network. Read more -
November 2010This report provides a national picture of current status (2005–2009) and trends in water quality of New Zealand lakes. It updates the 2006 report ‘A snapshot of lake water quality in New Zealand’. Read more -
July 2011This environment snapshot has been superseded by the October 2012 Recreational water quality in New Zealand indicator update and the 2013 Suitability for swimming indicator update. Read more -
December 2013The aim of a Composite River Condition Index for New Zealand is to combine a number of sub-indices to communicate a representative holistic picture of river condition. This report investigates three indices and discusses limitations and areas for improvement. Read more -
December 2013An assessment of the representativeness and statistical power of state of environment river monitoring sites across New Zealand. Read more -
August 2003This technical background report reviews the amenity effects of particles (TSP and PM10) in New Zealand and examines their significance. Read more -
March 2011This New Zealand Domestic Solid Fuel Burner Authorisation Manual provides details of the national authorisation procedures required for the sale of compliant domestic solid fuel burning appliances. Read more -
December 2009These guidelines provide advice on how public health risk associated with cyanobacteria in recreational waters can be managed. Read more -
June 2000A background review of the structure and value of periphyton communities in streams, factors controlling growth and composition of periphyton, and the effects of human activities on the community. Read more -
March 2009This report summarises changes in fish communities in New Zealand rivers, including changes in relation to different land uses. Read more -
August 2020This report summarises the updated (2012) Health and Air Pollution in New Zealand (HAPINZ) study which evaluates the effects of air pollution on human health across New Zealand and the resulting social costs. Read more -
August 2020This report provides the technical information for the updated Health and Air Pollution in New Zealand (HAPINZ) study which evaluates the effects of air pollution on human health across New Zealand and the resulting social costs. Read more -
October 2020This report assesses the suitability of using New Zealand Rural Fire Authority’s Fire Danger Rating System as an indicator on wildfire risk for the Ministry for the Environment and Stats NZ’s environmental reporting. Read more -
August 2001This guide provides guidance on the benefits of clear visibility, the contaminants and factors affecting visibility, suitable monitoring methods, potential indicators of visibility degradation, and how emissions causing visibility can be managed in New Zealand. Read more -
November 2005This report presents the results of a survey of domestic heating methods and fuels carried out in 29 urban areas of New Zealand. The survey collected information to be used in assessing measures to reduce PM10 emissions from domestic home heating in these areas. Read more -
October 2018This report presents summary information and statistics on the composition and sources of airborne particulate matter (PM) samples collected at air quality monitoring sites around New Zealand. Read more -
October 2003This report provides a summary of the results of air quality monitoring of carbon monoxide (CO), nitrogen dioxide (NO2), sulphur dioxide (SO2), ozone (O3), benzene and benzo(a)pyrene in New Zealand from 1992 to 2002. Read more -
December 1998This technical report summarises information on the effects of vehicle emissions on air quality in New Zealand. Read more -
November 2003This publication provides an indication of the extent to which existing concentrations of air contaminants in New Zealand may adversely affect human health. Read more -
November 2005This report provides information on different home heating options and their costs and benefits. Read more -
February 2020This NIWA report presents a modelled baseline of current concentrations of PM2.5 in ambient air and associated health impacts. Read more -
November 2005This report provides information on different home heating options and their costs and benefits from the Warm Homes study. This report presents the process and results of the second phase of the study. Read more -
April 2004This report estimates dioxin emissions from New Zealand foundry operations that melt and process scrap metals and alloys. Volume two comprises scientific test data. Read more -
April 2004This report estimates dioxin emissions from New Zealand foundry operations that melt and process scrap metals and alloys. Volume one is the emissions estimate report. Read more -
November 2019This report presents a modelled baseline of current concentrations of PM2.5 in ambient air and associated health impacts. Read more -
December 2013An investigation into the feasibility of using freshwater fish predictive models in national state of the environment indicators. Read more -
August 2011The National Air Quality Compliance Strategy sets out the practices regional councils could adopt to meet the air quality standard for PM₁₀ (particulate matter less than 10 micrometres) and thereby deliver clean healthy air for all New Zealanders. Read more -
September 2001This document summaries submissions received on the revised and new ambient air quality guidelines. Read more -
August 2001This report summarises the findings of the "Valuing New Zealand's clean green image" report. Read more -
July 2013The latest indicator update providing information on the biophysical condition of New Zealand's rivers. Read more