Table 3 Number (n) and frequency of occurrence (FO) of major categories of anthropogenic debris on the Cocos (Keeling) Islands in 2017 (area surveyed 1110 m2, total items recorded 23,227) relative to uninhabited Henderson Island (Pitcairn Islands Group, 2015, area surveyed 1310 m2, total items recorded 53,164).

From: Significant plastic accumulation on the Cocos (Keeling) Islands, Australia

Item Cocos (Keeling) Islands Henderson Island
n FO n FO
Single-use items
  Food packaging 1,158 0.050 1 <0.001
  Caps and lids 840 0.036 486 0.008
  Plastic bottle 145 0.006 115 0.002
  Plastic bag (and bits) 367 0.016 60 0.001
  Drinking straw 235 0.010 10 <0.001
  Cigarette lighter 86 0.004 3 <0.001
  Cotton bud stick 206 0.089
  Toothbrush 21 0.009 2 <0.001
Fishing related
  Rope 297 0.013 3,336 0.054
  Plastic strapping 17 <0.001 642 0.010
  Crates (and bits) 7 <0.001 245 0.004
  Fishing line 4 <0.001 220 0.004
Other
  Plastic fragment 16,106 0.693 48,121 0.791
  Resin pellet (‘nurdle’) 891 0.038 6,774 0.111
  Shoes 549 0.024 4 <0.001