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

17 June 2026

WAI Wānaka

Franzi Heidtke

Overview

B

30

12.5

0.5

100m x 20m

Mixed Substrate

Items per 1,000m2

52

Products

103

3034

Type Count Weight (g)
Paper & Cardboard 31 823
Other Paper & Cardboard (specify) 19 747
Cups, food trays & wrappers 2 30
Unidentifiable paper and cardboard fragments 10 46
Other 24 0
Sanitary items 24 N/A
Metal 21 1090
Construction material 1 879
Metal Bottle caps, lids & pull tabs 4 6
Foil wrappers 4 4
Aluminium drink cans 12 201
Plastic 19 482
Resin pellets A N/A
Bottles, drums, jerrycans & buckets > 2 L 2 385
Food containers 1 64
Unidentifiable soft plastic fragments 8 14
Safety & construction related 5 3
Bottles <= 2 L 1 15
Cigarettes, butts & filters 2 1
Glass & Ceramic 4 202
Glass or ceramic fragments 3 8
Bottles & jars 1 194
Fabric & Textiles 2 433
Other cloth 1 102
Unidentifiable cloth fragments 1 331
Wood 1 3
Wooden utensils 1 3
Foamed Plastic 1 1
Polystyrene insulation or packaging 1 1

Materials

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  • If you would like to learn how this data was collected. Our Methodology