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.

Porirua Harbour - Paremata Bridge

18 January 2025

Friends of Mana Island

Rosemary McCarthy

Overview

C

4

4.0

5.8

30m x 9m

Gravel/Pebble

Items per 1,000m2

2333

Products

630

996

Type Count Weight (g)
Plastic 402 205
Resin pellets A N/A
Clothes pegs 2 3
Cigarettes, butts & filters 2 1
Cosmetics and medical packaging 1 1
Safety & construction related 2 1
Straws 12 3
Plastic bags 1 2
Pens & Stationery 5 4
Food containers 4 7
Lollipop sticks 7 2
Food wrappers 21 3
Bottle neck rings 5 2
Bottle caps & lids 23 24
Bottle seals & tabs 4 1
Toys, sport, & recreation (Plastic) 7 4
Strapping bands & tape 10 1
Unidentifiable hard plastic fragments 129 102
Rope 14 12
Fishing line 26 15
Fishing gear 4 1
Unidentifiable soft plastic fragments 119 14
Hangers & retail packaging 2 1
Other Plastic 2 1
Glass & Ceramic 193 663
Glass or ceramic fragments 193 663
Foamed Plastic 10 28
Unidentifiable foamed plastic fragments 10 28
Other 9 63
Personal care items 3 27
Cotton buds 2 1
Batteries (Household) 1 30
Other 3 5
Wood 7 27
Processed timber & pallet crates 7 27
Metal 4 1
Foil wrappers 4 1
Fabric & Textiles 2 6
Other cloth 1 1
Clothing, towels and linen 1 5
Rubber 2 2
Toys, Sports & Recreation (Rubber) 1 1
Rubber bands 1 1
Paper & Cardboard 1 1
Unidentifiable paper and cardboard fragments 1 1

Materials

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  • 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