litter intelligence logo

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 - Porirua Stream Estuary

25 May 2022

Sustainable Coastlines

Dan Downing

Overview

B

11

8.4

12.8

50m x 10m

Mixed Substrate

Items per 1,000m2

2354

Products

1177

8796

Type Count Weight (g)
Plastic 928 3358
Resin pellets A N/A
Cosmetics and medical packaging 1 14
Bottles <= 2 L 6 358
Cigarettes, butts & filters 2 1
Cable ties & zip ties 27 48
Safety & construction related 24 470
Food wrappers 71 122
Gardening & farming related 11 511
Plastic bags 373 826
Unidentifiable hard plastic fragments 201 337
Strapping bands & tape 30 36
Food containers 26 102
Toys, sport, & recreation (Plastic) 18 196
Pens & Stationery 6 40
Bottle caps & lids 16 60
Clothes pegs 15 71
Straws 10 13
Bottle neck rings 3 16
Rope 9 17
Plastic utensils 5 12
Mesh bags 2 69
Lollipop sticks 3 1
Gloves 4 34
Unidentifiable soft plastic fragments 65 4
Foamed Plastic 90 101
Unidentifiable foamed plastic fragments 11 46
Polystyrene insulation or packaging 54 36
Foam glazier spacers 25 19
Fabric & Textiles 47 347
Rope, line or string (natural) 5 65
Other cloth 3 1
Unidentifiable cloth fragments 8 6
Clothing, towels and linen 31 275
Metal 35 1595
Aluminium drink cans 4 78
Metal vehicle parts 1 1304
Construction material 12 130
Metal Bottle caps, lids & pull tabs 1 1
Foil wrappers 17 82
Glass & Ceramic 28 301
Glass or ceramic fragments 28 301
Rubber 18 288
Unidentifiable rubber fragments 13 47
Toys, Sports & Recreation (Rubber) 4 230
Rubber footwear 1 11
Wood 13 2783
Processed timber & pallet crates 13 2783
Paper & Cardboard 10 22
Cups, food trays & wrappers 10 22
Other 8 1
Personal care items 1 1
Sanitary items 7 N/A

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 - Porirua Stream Estuary Partnerships Team, Ministry for the Environment
22 Mar, 2022
Items per 1,000m2
1320
83%

Next survey in this area

Porirua Harbour - Porirua Stream Estuary Kids Enhancing Tawa Ecosystems (KETE)
28 Oct, 2022
Items per 1,000m2
3430
90%