An interlaboratory comparison exercise for the determination of microplastics in standard sample bottles

Atsuhiko Isobe, Nina T. Buenaventura, Stephen Chastain, Suchana Chavanich, Andrés Cózar, Marie DeLorenzo, Pascal Hagmann, Hirofumi Hinata, Nikolai Kozlovskii, Amy L. Lusher, Elisa Martí, Yutaka Michida, Jingli Mu, Motomichi Ohno, Gael Potter, Peter S. Ross, Nao Sagawa, Won Joon Shim, Young Kyoung Song, Hideshige TakadaTadashi Tokai, Takaaki Torii, Keiichi Uchida, Katerina Vassillenko, Voranop Viyakarn, Weiwei Zhang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An interlaboratory comparison exercise was conducted to assess the consistency of microplastic quantification across several laboratories. The test samples were prepared by mixing one liter seawater free of plastics, microplastics made from polypropylene, high- and low-density polyethylene, and artificial particles in two plastic bottles, and analyzed concurrently in 12 experienced laboratories around the world. The minimum requirements to quantify microplastics were examined by comparing actual numbers of microplastics in these sample bottles with numbers measured in each laboratory. The uncertainty was due to pervasive errors derived from inaccuracies in measuring sizes and/or misidentification of microplastics, including both false recognition and overlooking. The size distribution of microplastics should be smoothed using a running mean with a length of >0.5 mm to reduce uncertainty to less than ±20%. The number of microplastics <1 mm was underestimated by 20% even when using the best practice for measuring microplastics in laboratories.

Original languageEnglish
Pages (from-to)831-837
Number of pages7
JournalMarine Pollution Bulletin
Volume146
DOIs
Publication statusPublished - Sep 2019

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interlaboratory comparison
Bottles
bottles
exercise
plastics
plastic
Plastic bottles
sampling
Low density polyethylenes
Seawater
Polypropylenes
Plastics
seawater
uncertainty
laboratory
polypropylenes
polyethylene
Uncertainty
measuring

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Aquatic Science
  • Pollution

Cite this

An interlaboratory comparison exercise for the determination of microplastics in standard sample bottles. / Isobe, Atsuhiko; Buenaventura, Nina T.; Chastain, Stephen; Chavanich, Suchana; Cózar, Andrés; DeLorenzo, Marie; Hagmann, Pascal; Hinata, Hirofumi; Kozlovskii, Nikolai; Lusher, Amy L.; Martí, Elisa; Michida, Yutaka; Mu, Jingli; Ohno, Motomichi; Potter, Gael; Ross, Peter S.; Sagawa, Nao; Shim, Won Joon; Song, Young Kyoung; Takada, Hideshige; Tokai, Tadashi; Torii, Takaaki; Uchida, Keiichi; Vassillenko, Katerina; Viyakarn, Voranop; Zhang, Weiwei.

In: Marine Pollution Bulletin, Vol. 146, 09.2019, p. 831-837.

Research output: Contribution to journalArticle

Isobe, A, Buenaventura, NT, Chastain, S, Chavanich, S, Cózar, A, DeLorenzo, M, Hagmann, P, Hinata, H, Kozlovskii, N, Lusher, AL, Martí, E, Michida, Y, Mu, J, Ohno, M, Potter, G, Ross, PS, Sagawa, N, Shim, WJ, Song, YK, Takada, H, Tokai, T, Torii, T, Uchida, K, Vassillenko, K, Viyakarn, V & Zhang, W 2019, 'An interlaboratory comparison exercise for the determination of microplastics in standard sample bottles', Marine Pollution Bulletin, vol. 146, pp. 831-837. https://doi.org/10.1016/j.marpolbul.2019.07.033
Isobe, Atsuhiko ; Buenaventura, Nina T. ; Chastain, Stephen ; Chavanich, Suchana ; Cózar, Andrés ; DeLorenzo, Marie ; Hagmann, Pascal ; Hinata, Hirofumi ; Kozlovskii, Nikolai ; Lusher, Amy L. ; Martí, Elisa ; Michida, Yutaka ; Mu, Jingli ; Ohno, Motomichi ; Potter, Gael ; Ross, Peter S. ; Sagawa, Nao ; Shim, Won Joon ; Song, Young Kyoung ; Takada, Hideshige ; Tokai, Tadashi ; Torii, Takaaki ; Uchida, Keiichi ; Vassillenko, Katerina ; Viyakarn, Voranop ; Zhang, Weiwei. / An interlaboratory comparison exercise for the determination of microplastics in standard sample bottles. In: Marine Pollution Bulletin. 2019 ; Vol. 146. pp. 831-837.
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