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Surface microplastics abundance in the Eurasian Arctic from 2019-09-19 to 2019-10-21 (NCEI Accession 0259526)


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      DateTime:  2024-02-17T16:29:52Z
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            title:  Surface microplastics abundance in the Eurasian Arctic from 2019-09-19 to 2019-10-21 (NCEI Accession 0259526)
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                date:  2022-09-27
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/905 Evgeny Yakushev
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1780 Norwegian Institute for Water Research (NIVA)
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        abstract:  This study estimated the load of surface microplastics (i.e. plastics less than 5mm, reported in unit of pieces/m^3) in the Eurasian Arctic (Barents, Kara, Laptev and East-Siberian Seas) from 2019-09-19 to 2019-10-21. Microplastics data were collected using neuston trawl net aboard R/V Akademik Mstislav Keldysh. This dataset contains the results from all 48 surface net tows, in a spreadsheet format. Tows were conducted for 30 min at an average cruising speed of 2 knots.
        purpose:  These microplastic concentration data were collected in order to determine the abundance of microplastics in the surface waters of the Eurasian Arctic from 2019-09-19 to 2019-10-21.
        credit:  Related Funding Agency: Norwegian Ministry of Climate and Environment project # RUS-19/0001
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            keyword:  East-Siberian Sea
            keyword:  Laptev Sea
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            otherConstraints:  Cite as: Yakushev, Evgeniy; Gebruk, Anna; Osadchiev, Alexander; Pakhomova, Svetlana; Lusher, Amy; Berezina, Anfisa; van Bavel, Bert; Vorozheikina, Elena; Chernykh, Denis; Kolbasova, Glafira; Razgon, Ilia; Semiletov, Igor (2022). Surface microplastics abundance in the Eurasian Arctic from 2019-09-19 to 2019-10-21 (NCEI Accession 0259526). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0259526. Accessed [date].
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                title:  The NOAA NCEI Global Marine Microplastics Database (1972-present)
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                    date:  2018-04-11
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                title:  Microplastics distribution in the Eurasian Arctic is affected by Atlantic waters and Siberian rivers
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                    date:  2021-02-03
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                    individualName:  Berezina, Anfisa
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                    name:  Communications Earth & Environment
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                    beginPosition:  2019-09-19
                    endPosition:  2019-10-21
        supplementalInformation:  Submission Package ID: WDPK8Y
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                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
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                description:  NCEI Accession 0259526 v1.1 was published.
                dateTime:
                  DateTime:  2022-09-27T15:34:21Z
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                        title:  NCEI Accession 0259526 v1.1
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                description:  Parameter or Variable: MICROPLASTIC CONCENTRATION (measured); Units: pieces/m3; Observation Category: in situ; Sampling Instrument: Neuston net; Sampling and Analyzing Method: 48 surface water samples were collected using a neuston net with mesh size of 200 μm and mouth opening of 40 × 60 cm. The net was deployed from the right side of the vessel and submerged at the depth of 20 cm in the sea. The net was towed along a straight line during 30 min per sample at a speed of 2 knots. Despite the fixed duration of the towing time intervals, towing distances varied by ~5% due to occasional instabilities in vessel speed and impact of sea surface currents. The amount of filtered water was equal to 220 ± 11m3 according to the GPS track of the vessel, estimated as a difference in geographical positions of the beginning and the end of towing. The estimated variability of water volume for an individual towing was considered during the analysis of sampling results. After towing, the net was rinsed outside the vessel with a deck hose and returned to the ship deck. The cod end was removed and taken to the vessel laboratory where it was rinsed, and volume reduced into a metal sieve with mesh size of 200 μm using pre-filtered Milli-Q water. To minimize potential contamination from airborne fibers the samples were protected by a metal lid when possible. The collected particles (0.2–5 mm) were stored in hermetically closed glass petri dishes pre-rinsed using prefiltered (0.45 μm) Milli-Q water until the analysis in the onshore laboratory. All particles from surface samples were analyzed using a combination of visual inspection and chemical identification of polymeric composition via spectroscopy methods. Particles collected with a 200-μm neuston net were visually inspected in the vessel laboratory. All particles were weighed (mg) in the onshore clean laboratory followed by identification of chemical composition of the obtained material using a Fourier Transform Infrared spectroscopy (FT-IR) analysis on PerkinElmer Spotlight 400 FTIR (Frontier ATR).; Data Quality Method: To mitigate sample contamination, a number of procedural steps were introduced. All equipment and glass jars were rinsed with prefiltered (0.45 μm) Milli-Q water before use. Filters were checked under a microscope for contamination prior to use. The samples and equipment were covered where possible with aluminum foil or glass to minimize periods of exposure. All consumables were taken directly from their packaging and checked for contamination if possible. Personal protective equipment, 100% cotton lab coats and gloves were worn during the whole processing procedure. All procedures in the laboratory were conducted in a clean airflow cabinet (Labculture LA2-5A1-E)..
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        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  Neuston net
            type:  Neuston net
            description:  Neuston net is a net designed to sample plankton or microplastics located in the first few centimeters of the water column. cf. net - plankton net (insttypes_id 31)
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                code:  AKADEMIK MSTISLAV KELDYSH
            description:  Flag: Russia Vessel type: Research Built: 12.1980 IMO: 7811018
            instrument: (missing)