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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

10 April 2022

Friends of Mana Island

Rosemary McCarthy

Overview

C

5

5.8

7.5

30m x 9m

Mixed Substrate

Items per 1,000m2

4737

Products

1279

3444

Type Count Weight (g)
Plastic 1019 951
Resin pellets A N/A
Unidentifiable soft plastic fragments 248 84
Food wrappers 122 46
Shotgun wadding & shells 1 3
Cigarette lighters 1 5
Other Plastic 1 51
Rope 36 60
Fishing line 15 7
Bottle caps & lids 59 93
Lollipop sticks 22 8
Plastic bags 6 58
Bottles <= 2 L 2 80
Unidentifiable hard plastic fragments 356 197
Clothes pegs 1 2
Cosmetics and medical packaging 3 11
Pens & Stationery 8 18
Safety & construction related 23 32
Hangers & retail packaging 5 2
Syringes 3 N/A
Parking tickets & receipts 5 2
Straws 35 17
Strapping bands & tape 8 9
Bottle neck rings 13 5
Toys, sport, & recreation (Plastic) 12 57
Bottle seals & tabs 16 3
Food containers 14 99
Cigarettes, butts & filters 3 1
Bacterial habitat wheels 1 1
Glass & Ceramic 168 849
Construction material 123 730
Glass or ceramic fragments 45 119
Other 36 6
Cotton buds 34 5
Sanitary items 1 N/A
Personal care items 1 1
Foamed Plastic 34 24
Toys, Sports & Recreation (Foamed Plastic) 1 12
Polystyrene insulation or packaging 23 7
Foam glazier spacers 5 2
Unidentifiable foamed plastic fragments 5 3
Wood 8 1422
Processed timber & pallet crates 8 1422
Fabric & Textiles 7 162
Clothing, towels and linen 5 123
Backpacks & bags 2 39
Rubber 5 20
Rubber gloves 1 8
Construction & Automotive 1 7
Toys, Sports & Recreation (Rubber) 3 5
Metal 2 10
Metal Bottle caps, lids & pull tabs 1 2
Foil wrappers 1 8

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 Paremata School
19 Oct, 2021
Items per 1,000m2
4381
89%

Next survey in this area

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