Data.

This dataset was collected by Citizen Scientists at a specific 'Survey Area', set-up at an official ‘Monitoring Site’ 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

Paremata Bridge

3 November 2019

Friends of Mana Island

Richard McKenzie

Overview

C

8

7.3

12.7

30m x 9m

MuddySand

Items per 1,000m2

6396

Products

1727

7771

Type Count Weight (g)
Plastic 994 1790
Resin pellets A N/A
Unidentifiable hard plastic fragments 215 191
Syringes 1 N/A
Gloves 1 12
Plastic sheeting 6 69
Bottle seals & tabs 16 5
Bottle neck rings 14 4
Fishing gear 2 2
Fishing nets 1 35
Parking tickets & receipts 4 6
Safety related 3 9
Toys, balls & party poppers 14 56
Lollipop sticks & cotton buds 67 20
Rope 30 288
Medical waste 1 4
Bottle caps & lids (Plastic) 70 144
Shotgun wadding & shells 2 4
Straws 57 42
Clothes pegs 4 10
Pens 5 21
Plastic utensils 3 8
Bottles, drums, jerrycans & buckets > 2 L 1 14
Food wrappers 343 256
Bottles <= 2 L (Plastic) 5 207
Plastic bags 44 265
Strapping bands 34 26
Cigarettes, butts & filters 16 2
Food containers 13 41
Gardening & farming related 6 39
Fishing line 16 10
Glass & Ceramic 666 2838
Glass or ceramic fragments 185 473
Construction material 481 2365
Foamed Plastic 22 45
Polystyrene insulation or packaging 8 7
Unidentifiable foamed plastic fragments 11 31
Polystyrene cups or food packs 2 6
Ear plugs 1 1
Wood 21 2824
Processed timber & pallet crates 21 2824
Metal 8 171
Wire, wire mesh & barbed wire 6 80
Other cans (<= 4 L) 1 34
Aluminium drink cans 1 57
Cloth 6 77
Other Cloth 5 8
Clothing, hats, gloves & towels 1 69
Other 5 0
Sanitary items 5 N/A
Paper & Cardboard 3 18
Cups, food trays & wrappers 3 18
Rubber 2 8
Condoms 1 N/A
Rubber gloves 1 8
Materials
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  • If you would like to learn how this data was collected. Our Methodology