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

2 December 2023

Friends of Mana Island

Rosemary McCarthy

Overview

C

3

6.0

5.3

30m x 9m

Gravel/Pebble

Items per 1,000m2

5126

Products

1384

5230

Type Count Weight (g)
Plastic 876 832
Resin pellets A N/A
Bottles <= 2 L 2 32
Bottle caps & lids 44 102
Plastic bags 13 126
Rope 27 40
Fishing gear 3 31
Hangers & retail packaging 14 3
Fishing line 11 30
Safety & construction related 11 78
Unidentifiable soft plastic fragments 221 66
Food containers 8 30
Strapping bands & tape 49 25
Food wrappers 94 43
Toys, sport, & recreation (Plastic) 15 33
Lollipop sticks 16 5
Unidentifiable hard plastic fragments 280 150
Straws 25 14
Bottle seals & tabs 13 5
Bottle neck rings 22 7
Pens & Stationery 3 3
Cigarette lighters 1 5
Cigarettes, butts & filters 3 1
Clothes pegs 1 3
Glass & Ceramic 436 2572
Construction material 315 2232
Glass or ceramic fragments 121 340
Other 28 10
Personal care items 5 9
Cotton buds 16 1
Sanitary items 7 N/A
Wood 14 1616
Processed timber & pallet crates 12 1606
Wooden utensils 1 3
Corks 1 7
Rubber 11 123
Toys, Sports & Recreation (Rubber) 8 6
Construction & Automotive 3 117
Foamed Plastic 8 2
Polystyrene insulation or packaging 2 1
Unidentifiable foamed plastic fragments 6 1
Paper & Cardboard 5 4
Unidentifiable paper and cardboard fragments 4 3
Other Paper & Cardboard (specify) 1 1
Metal 3 70
Aluminium drink cans 1 13
Construction material 1 13
Other Metal 1 44
Fabric & Textiles 3 1
Unidentifiable cloth fragments 3 1

Materials

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