Data.

This dataset was collected by Citizen Scientists at an official 'Survey Area' as part of the Litter Intelligence long-term litter monitoring programme. The data are freely and openly accessible to anyone. Download the raw data, share this survey, and learn more about the data collection methodology through the links at the bottom of the page.

Litter Survey

freshwater-icon Freshwater.

Cardrona River

18 June 2025

WAI Wānaka

Jose Cranfield

Overview

C

36

9.0

1.0

100m x 20m

Mixed Substrate

Items per 1,000m2

204

Products

409

30225

Type Count Weight (g)
Plastic 177 1320
Resin pellets A N/A
Vapes 1 42
Plastic vehicle parts 8 68
Rope 1 9
Cigarettes, butts & filters 19 9
Plastic bags 30 247
Food wrappers 80 304
Food containers 28 197
Bottles <= 2 L 6 345
Fishing gear 2 92
Cable ties & zip ties 2 7
Metal 86 269
Metal Bottle caps, lids & pull tabs 57 123
Aluminium drink cans 29 146
Glass & Ceramic 84 27230
Bottles & jars 74 23820
Glass or ceramic fragments 10 3410
Paper & Cardboard 33 1399
Cardboard boxes 9 1216
Other Paper & Cardboard (specify) 2 30
Cups, food trays & wrappers 22 153
Other 22 1
Sanitary items 21 N/A
Personal care items 1 1
Rubber 6 2
Chewing gum 6 2
Fabric & Textiles 1 4
Unidentifiable cloth fragments 1 4

Materials

  • Would you like to analyse the data yourself?
  • Or share if you think this data would be interesting to others.
  • If you would like to learn how this data was collected. Our Methodology

This is the first litter survey in this survey area