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 Collection Survey

Porirua Harbour - Porirua Stream Estuary

16 September 2020

Porirua City Council

Nigel Clarke

Overview

C

15

22.5

22

50m x 20m

Mud

Items per 1,000m2

2201

Products

2201

35393

Type Count Weight (g)
Plastic 1804 18377
Resin pellets B N/A
Unidentifiable hard plastic fragments 250 1123
Toys, sport, & recreation 24 615
Strapping bands & tape 18 160
Bottle caps & lids 26 82
Bottle neck rings 28 35
Bottles <= 2 L 33 128
Cable ties & zip ties 12 32
Cigarette lighters 1 27
Clothes pegs 2 15
Drink package rings 10 8
Fishing line 1 59
Straws 17 18
Food containers 105 1252
Gloves 14 689
Lollipop sticks 15 12
Medical waste 5 8
Pens 3 27
Plastic bags 6 97
Plastic sheeting 741 10061
Plastic utensils 41 364
Rope 2 40
Food wrappers 450 3525
Foamed Plastic 115 337
Polystyrene cups or food packs 2 10
Polystyrene insulation or packaging 88 252
Unidentifiable foamed plastic fragments 25 75
Cloth 90 9286
Canvas, sailcloth & sacking (hessian) 1 212
Clothing, hats, gloves & towels 72 8321
Footwear & shoes 1 200
Rope, line or string (natural) 9 121
Other cloth 7 432
Metal 73 3733
Aluminium drink cans 71 3727
Foil wrappers 2 6
Paper & Cardboard 62 1746
Cardboard boxes 8 290
Cups, food trays & wrappers 28 213
Paper, newspapers & paper receipts 26 1243
Rubber 30 560
Balloons, tennis balls, footballs, dog toys etc 18 320
Rubber gloves 11 40
Rubber footwear 1 200
Other 18 3
Sanitary items 17 N/A
Personal care items 1 3
Glass & Ceramic 9 1351
Bottles & jars 3 688
Glass or ceramic fragments 6 663
Materials
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  • If you would like to learn how this data was collected. Our Methodology