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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.

Porirua Harbour - Paremata Bridge

2 October 2022

Friends of Mana Island

Rosemary McCarthy

Overview

D

4

8.0

7.8

30m x 9m

Gravel/Pebble

Items per 1,000m2

7030

Products

1898

9021

Type Count Weight (g)
Plastic 1631 4528
Resin pellets C N/A
Unidentifiable soft plastic fragments 373 501
Safety & construction related 36 161
Hangers & retail packaging 7 5
Other Plastic 2 85
Plastic vehicle parts 1 6
Unidentifiable hard plastic fragments 451 461
Toys, sport, & recreation (Plastic) 15 53
Strapping bands & tape 23 23
Bottle caps & lids 107 225
Bottle neck rings 34 21
Bottle seals & tabs 35 11
Bottles <= 2 L 3 101
Bottles, drums, jerrycans & buckets > 2 L 1 72
Cigarette lighters 2 21
Clothes pegs 6 14
Fishing line 6 4
Fishing nets 1 1871
Food containers 30 142
Food wrappers 319 185
Lollipop sticks 36 19
Gardening & farming related 6 34
Mesh bags 1 2
Parking tickets & receipts 1 1
Pens & Stationery 11 11
Plastic bags 18 250
Plastic sheeting 1 1
Plastic utensils 5 99
Rope 22 96
Shotgun wadding & shells 13 14
Straws 65 39
Glass & Ceramic 149 1020
Construction material 90 766
Glass or ceramic fragments 59 254
Other 43 26
Cotton buds 32 7
Personal care items 4 19
Sanitary items 7 N/A
Foamed Plastic 26 32
Polystyrene insulation or packaging 5 11
Unidentifiable foamed plastic fragments 21 21
Wood 22 3184
Processed timber & pallet crates 21 3178
Other Wood (specify) 1 6
Rubber 15 150
Rubber gloves 2 25
Toys, Sports & Recreation (Rubber) 7 118
Unidentifiable rubber fragments 6 7
Paper & Cardboard 6 42
Tetrapaks 6 42
Fabric & Textiles 3 24
Unidentifiable cloth fragments 2 21
Clothing, towels and linen 1 3
Metal 3 15
Aluminium drink cans 1 13
Metal Bottle caps, lids & pull tabs 1 1
Foil wrappers 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

Porirua Harbour - Paremata Bridge Friends of Mana Island
10 Jul, 2022
Items per 1,000m2
9063
88%

Next survey in this area

Porirua Harbour - Paremata Bridge Friends of Mana Island
11 Feb, 2023
Items per 1,000m2
8785
85%