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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

beach-icon Beach.

Sumner Beach - Cave Rock End

31 January 2026

Christchurch Envirokids

Kate Gislason

Overview

A

14

8.2

5.4

100m x 20m

Sand

Items per 1,000m2

107

Products

214

171

Type Count Weight (g)
Plastic 126 51
Resin pellets C N/A
Lollipop sticks 6 2
Food wrappers 6 6
Pens & Stationery 3 3
Hangers & retail packaging 1 1
Cigarettes, butts & filters 23 3
Strapping bands & tape 1 1
Cable ties & zip ties 2 1
Unidentifiable hard plastic fragments 78 29
Bottle caps & lids 6 5
Foamed Plastic 49 5
Unidentifiable foamed plastic fragments 47 3
Toys, Sports & Recreation (Foamed Plastic) 1 1
Foam glazier spacers 1 1
Fabric & Textiles 13 15
Rope, line or string (natural) 6 12
Unidentifiable cloth fragments 7 3
Wood 12 13
Processed timber & pallet crates 12 13
Paper & Cardboard 5 48
Unidentifiable paper and cardboard fragments 2 1
Fireworks 3 47
Glass & Ceramic 4 8
Bottles & jars 2 7
Glass or ceramic fragments 2 1
Other 2 3
Batteries (Household) 1 2
Personal care items 1 1
Rubber 2 27
Unidentifiable rubber fragments 2 27
Metal 1 1
Aluminium drink cans 1 1

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

Previous survey in this area

Sumner Beach - Cave Rock End Christchurch Envirokids
19 Oct, 2024
Items per 1,000m2
46
85%