On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Atmospheric analysis

NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 50 years.

  • Nutrients and urbanisation

    What are the potential sources of nutrients from urbanisation?
  • (no image provided)

    Chemical contamination and urbanisation

    What are the sources of chemical contamination resulting from urbanisation?
  • Riparian vegetation and horticulture

    How may horticultural activities impact riparian vegetation around a waterway?
  • (no image provided)

    Water resources and horticulture

    How do horticultural activities potentially influence water flows?
  • (no image provided)

    Chemical contamination and horticulture

    What are the potential sources of chemical contamination from horticulture activities?
  • (no image provided)

    Nutrients and horticulture

    What are the potential sources of nutrients from horticultural activities?
  • (no image provided)

    Sediment and horticulture

    How may horticultural activities increase sediments in waterways?
  • (no image provided)

    Instream barriers and forestry

    How do instream barriers as a result of forestry activities potentially influence water resources?
  • Riparian vegetation and forestry

    How may forestry activities impact riparian vegetation around a waterway?
  • Chemical contamination and forestry

    What are the potential sources of chemical contamination from forestry activities?
  • Nutrients and agriculture

    What are the potential sources of nutrients from agricultural activities?
  • Discharges

    Discharging into a waterway is likely to impact water quality.