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 - Paremata Bridge

31 May 2020

Friends of Mana Island

Rosemary McCarthy

Overview

C

8

8

14.8

30m x 9m

Mud

Items per 1,000m2

6322

Products

1707

3454

Type Count Weight (g)
Plastic 1270 1020
Resin pellets A N/A
Toys, sport, & recreation 17 15
Bottle seals & tabs 25 8
Plastic bags 28 83
Food containers 8 28
Unidentifiable hard plastic fragments 390 264
Pens 10 7
Plastic utensils 2 3
Gardening & farming related 2 10
Gloves 2 10
Safety & construction related 3 2
Clothes pegs 2 5
Fishing line 21 20
Fishing gear 2 28
Food wrappers 245 92
Rope 37 99
Unidentifiable soft plastic fragments 313 157
Bottle caps & lids 65 88
Strapping bands & tape 16 16
Syringes 1 N/A
Straws 33 18
Bottle neck rings 11 2
Lollipop sticks 31 14
Other Plastic 6 51
Glass & Ceramic 339 1311
Glass or ceramic fragments 123 418
Construction material 216 893
Other 39 5
Cotton buds 36 5
Sanitary items 3 N/A
Foamed Plastic 34 12
Polystyrene insulation or packaging 23 10
Unidentifiable foamed plastic fragments 11 2
Wood 14 800
Corks 2 14
Processed timber & pallet crates 12 786
Rubber 7 217
Other Rubber 2 4
Rubber footwear 1 202
Balloons, tennis balls, footballs, dog toys etc 2 3
Unidentifiable rubber fragments 2 8
Metal 2 10
Other cans (<= 4 L) 1 6
Construction material 1 4
Cloth 2 79
Clothing, hats, gloves & towels 1 71
Unidentifiable cloth fragments 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