Comment on “The missing ocean plastic sink: Gone with the rivers”

Comment on “The missing ocean plastic sink: Gone with the rivers”

Weiss et al . (Reports, 2 July 2021, p. 107) incorrectly conclude that the residence time for floating microplastic stock at the ocean surface is ~2.4 years. We contend that this conclusion is fundamentally flawed, because the residence time is obtained through dividing a published oceanic stock of...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 2022-08, Vol.377 (6608), p.eabl6433-eabl6433
Hauptverfasser: Mai, Lei, Sun, Xiang-Fei, Zeng, Eddy Y.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
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Zusammenfassung:Weiss et al . (Reports, 2 July 2021, p. 107) incorrectly conclude that the residence time for floating microplastic stock at the ocean surface is ~2.4 years. We contend that this conclusion is fundamentally flawed, because the residence time is obtained through dividing a published oceanic stock of plastic debris by a doubtable river microplastic flux estimated by the authors.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.abl6433