Indicator list

This section gives a full list of our Environmental Health Indicators.

Domain Topic Indicator Frequency of updates
Air quality Wood and coal fires
  • Number of households using wood fires for home heating
  • Number of households using coal fires for home heating

Next census (2018)

  Motor vehicles
  • Number of motor vehicles in New Zealand, by vehicle type and fuel type
  • Number of light vehicles per 1000 population
  • Average age of vehicle fleet


  Particulate matter
  • Annual average PM10 levels at monitoring sites
  • Exceedances of the daily national standard for PM10 levels, including maximum PM10 levels
Every 1-2 years
  Other air pollutants
  • Annual average nitrogen dioxide concentration at monitoring sites
  • Nitrogen dioxide 1-hour maximum levels at monitoring sites
  • Monitoring sites exceeding the WHO daily guideline for sulphur dioxide
  • Monitoring sites exceeding the national environmental standard (one-hour average) for sulphur dioxide
  • Carbon monoxide 8-hour maximum levels at monitored sites
Every 1-2 years 
Recreational water quality Livestock
  • Number and density of livestock in New Zealand, by type
  • Number and density of dairy cattle in New Zealand, by TA
Annual or as available
  Water-borne diseases related to recreational water
  • Notifications of campylobacteriosis, cryptosporidiosis and giardiasis (excluding cases who were overseas during incubation period)
  • Notifications of campylobacteriosis, cryptosporidiosis and giardiasis with recreational water as a risk factor
Drinking-water quality Access to safe drinking-water
  • Population with access to bacteriological compliant drinking-water
  • Population with access to protozoal compliant drinking-water
  Water-borne diseases related to untreated water
  • Notifications of campylobacteriosis, cryptosporidiosis and giardiasis (excluding cases who were overseas during incubation period)
  • Notifications of campylobacteriosis, cryptosporidiosis and giardiasis with untreated water as a risk factor
  Access to fluoridated drinking-water
  • Population with access to fluoridated drinking-water 
  Oral health of children
  • Percentage of children (5-year-olds and Year 8) who are caries-free, by fluoridation status
  • Mean number of decayed, missing or filled teeth of children, by fluoridation status
Indoor environment Home heating
  • Percentage of households with no form of heating
Next census (2018)
  Health and cold damp houses
  • Acute rheumatic fever - reported notifications; reported hospitalisation rate
  Household crowding
  • Percentage of the population living in crowded households
Next census (2018)
  Health and household crowding
  • Meningococcal disease hospitalisations in children aged 0-14 years
  Second-hand smoke exposure 
  • Percentage of the children and non-smoking adults exposed to second-hand smoke in their home 
Every few years (as available)
  Health and second-hand smoke
  • Middle ear infections (otitis media), acute hospitalisations for children aged 0-14 years
Climate change Temperature: our changing climate 
  • Number of days above 25°C
  • Number of days below 0°C
  Rainfall and drought: our changing climate
  • Number of days with soil moisture deficit
  Monitoring the health effects of climate change
  • Notifications of cryptosporidiosis and giardiasis
  • Notifications of salmonellosis
   Energy use
  •  Total energy consumed, by fuel type and sector
Hazardous substances Health effects of hazardous substances
  • Deaths due to hazardous substances exposures
  • Hospitalisations due to hazardous substances exposures
  • Lead absorption notifications
  • Calls to National Poisons Centre
  • Hazardous substances incidents
  • Notifications arising from poisoning from chemical contamination of the environment
  • Hazardous substances notifications
  • Unintentional carbon monoxide poisoning hospitalisations
UV exposure UV levels 
  • Monthly UV index at midday (peak and average), at four locations throughout New Zealand
  Skin cancer
  • Number of melanoma cancer registrations
  • Number of melanoma cancer deaths
  • Number of non-melanoma skin cancer deaths
  Vitamin D deficiency 
  • Proportion of adults who have vitamin D deficiency 
Occasional (as available)
Population Population size and change 
  • Population size
  • Population density
  • Population change

Next census (2018)

Border Health Border Health
  • Exotic notifiable diseases in New Zealand of priority border health concern
  • High-risk human disease competent vectors/pests present at the New Zealand border
  • Human-disease competent vectors/pests introduced to New Zealand
  • Overseas infectious diseases of priority concern to New Zealand

Annual (as available)

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