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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.
Affiliation
  • Isobe A; Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-Koen, Kasuga 816-8580, Japan. Electronic address: aisobe@riam.kyushu-u.ac.jp.
  • Buenaventura NT; Norwegian Institute for Water Research, Gaustadalléen 21, Oslo, Norway.
  • Chastain S; Coastal Ocean Research Institute/Ocean Wise Conservation Association, P.O. Box 3232, Vancouver, BC V6B 3X2, Canada.
  • Chavanich S; Chulalongkorn University, Department of Marine Science, Faculty of Science, Bangkok 10330, Thailand.
  • Cózar A; Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Campus de Excelencia Internacional del Mar, Instituto Universitario de Investigaciones Marinas, E-11510 Puerto Real, Spain.
  • DeLorenzo M; National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, 219 Fort Johnson Rd., Charleston, SC, USA.
  • Hagmann P; Association Oceaneye, Rue de Montbrillant 30, 1201 Geneva, Switzerland.
  • Hinata H; Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan.
  • Kozlovskii N; Pacific Geographical Institute, Far Eastern Branch of Russian Academy of Sciences, Radio 7, 690041 Vladivostok, Russia.
  • Lusher AL; Norwegian Institute for Water Research, Gaustadalléen 21, Oslo, Norway.
  • Martí E; Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Campus de Excelencia Internacional del Mar, Instituto Universitario de Investigaciones Marinas, E-11510 Puerto Real, Spain.
  • Michida Y; Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8564, Japan.
  • Mu J; National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China.
  • Ohno M; Institute of Environmental Informatics, IDEA Consultants, Inc., 2-2-2 Hayabuchi, Tsuzuki-ku, Yokohama 224-0025, Japan.
  • Potter G; Association Oceaneye, Rue de Montbrillant 30, 1201 Geneva, Switzerland.
  • Ross PS; Coastal Ocean Research Institute/Ocean Wise Conservation Association, P.O. Box 3232, Vancouver, BC V6B 3X2, Canada.
  • Sagawa N; Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan.
  • Shim WJ; Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje-shi 53201, South Korea.
  • Song YK; Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje-shi 53201, South Korea.
  • Takada H; Laboratory of Organic Geochemistry, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
  • Tokai T; Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan.
  • Torii T; Institute of Environmental Ecology, IDEA Consultants, Inc., 1334-5 Riemon, Yaizu 421-0212, Japan.
  • Uchida K; Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan.
  • Vassillenko K; Coastal Ocean Research Institute/Ocean Wise Conservation Association, P.O. Box 3232, Vancouver, BC V6B 3X2, Canada.
  • Viyakarn V; Chulalongkorn University, Department of Marine Science, Faculty of Science, Bangkok 10330, Thailand.
  • Zhang W; National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China.
Mar Pollut Bull ; 146: 831-837, 2019 Sep.
Article in En | MEDLINE | ID: mdl-31426225
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plastics / Laboratories Type of study: Guideline Language: En Journal: Mar Pollut Bull Year: 2019 Type: Article
Fulltext
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plastics / Laboratories Type of study: Guideline Language: En Journal: Mar Pollut Bull Year: 2019 Type: Article