Environmental health

Environmental healthNgā Tūtohu Taiao

A healthy environment is essential for good health, particularly clean air and water, and healthy homes.

These indicators tell New Zealand’s environmental health story

Air quality

Wood and coal fires, number of motor vehicles, air pollutants, deaths and hospital visits due to air pollution.

Drinking water quality

Access to safe drinking water, waterborne diseases (campylobacteriosis, giardiasis, cryptosporidiosis), oral health, fluoridated drinking water, oral health.

Recreational water quality

Livestock numbers, waterborne infectious diseases.

Indoor environment

Household crowding, second-hand smoke, asthma, lower respiratory tract infections, meningococcal disease, SUDI.

UV exposure

Melanoma, non-melanoma skin cancer.

Climate change

Number of hot and cold days, notifications of cryptosporidiosis, giardiasis and salmonellosis.


Use of different transport modes, road traffic injuries, unmet GP need due to lack of transport.

Hazardous substances

Notifications, hospitalisations and deaths due to hazardous substances exposure (including lead exposure).

Animals and human health

Leptospirosis infection.

Population vulnerability

Population characteristics, population groups more vulnerable to environmental hazards.

Border health

Overseas infectious diseases, high-risk pests and exotic mosquitoes established in NZ.

Explore our interactive data

These dashboards let you explore regional data about environmental health.


Districts (formerly district health boards) are responsible for the health of the people living in their district. There are 20 districts in Aotearoa New Zealand.

Public Health Services

The National Public Health Service (PHS) delivers national, regional and local programmes to achieve pae ora (healthy futures). There are 12 PHSs in Aotearoa New Zealand.

Territorial Authority

Territorial authorities (TAs) include city councils and district councils. TAs provide services and infrastructure for their local community. There are 67 TAs in Aotearoa New Zealand.

Regional Council

Regional councils (RCs) are responsible for many environmental and public transport matters in their region. There are 16 regional councils (including unitary authorities) in Aotearoa New Zealand.

Access datasets and metadata

Access datasets and indicator metadata from the Resources page.

Go to Resources page

National data

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About the indicators

These Environmental Health Indicators are part of the Environmental Health Intelligence New Zealand (EHINZ). Manatū Hauora Ministry of Health funds the EHINZ. For more information about the Environmental Health Intelligence NZ, including indicators, factsheets and statistics, visit www.ehinz.ac.nz.