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Exceptional and rapid accumulation of anthropogenic debris on one of the world's most remote and pristine islands

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journal contribution
posted on 2023-05-19, 04:53 authored by Jennifer Lavers, Bond, AL
In just over half a century plastic products have revolutionized human society and have infiltrated terrestrial and marine environments in every corner of the globe. The hazard plastic debris poses to biodiversity is well established, but mitigation and planning are often hampered by a lack of quantitative data on accumulation patterns. Here we document the amount of debris and rate of accumulation on Henderson Island, a remote, uninhabited island in the South Pacific. The density of debris was the highest reported anywhere in the world, up to 671.6 items/m2 (mean ± SD: 239.4 ± 347.3 items/m2) on the surface of the beaches. Approximately 68% of debris (up to 4,496.9 pieces/m2) on the beach was buried <10 cm in the sediment. An estimated 37.7 million debris items weighing a total of 17.6 tons are currently present on Henderson, with up to 26.8 new items/m accumulating daily. Rarely visited by humans, Henderson Island and other remote islands may be sinks for some of the world’s increasing volume of waste.

History

Publication title

Proceedings of the National Academy of Sciences of the United States of America

Volume

114

Issue

23

Pagination

6052-6055

ISSN

0027-8424

Department/School

Institute for Marine and Antarctic Studies

Publisher

Natl Acad Sciences

Place of publication

2101 Constitution Ave Nw, Washington, USA, Dc, 20418

Rights statement

Copyright 2017 PNAS

Repository Status

  • Open

Socio-economic Objectives

Consumption patterns, population issues and the environment

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