Intelligence for decisions

Environmental Health Intelligence NZ provides information and intelligence on how the environment affects the health of Aotearoa New Zealand's population. Explore our domains:

Annual key findings

  • Climate Change
    Most years since 2010 had more hot and fewer cold days compared to the baseline. Extreme rainfall in 2022 affected the same regions as Cyclone Gabrielle in 2023.
  • Indoor Environment
    Maternal smoking decreased over the past decade, with Māori rates down 10 percentage points. Census data is limited for heating, crowding and second-hand smoke exposure.
  • Water quality
    The percentage of New Zealanders with access to registered and/or fluoridated drinking water has not changed in the past decade.
  • Air Quality
    WHO air quality guidelines were exceeded at most stations monitoring nitrogen dioxide (NO2) and fine particulate matter (PM2.5) in 2020.

Latest news


Our tool for exploring geographic health data on Healthspace website will retire soon.