Dataset Overview | National Centers for Environmental Information (NCEI)

Estimations of floating microplastics, mesoplastics, and macroplastics around Kuroshio Current, western North Pacific collected from 2014-02-03 to 2014-03-01 (NCEI Accession 0279325)

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This study estimated the concentration of floating microplastics (i.e. plastics measuring less than 5 mm; reported in unit of counts/km2), mesoplastics (i.e. plastics measuring 5-25 mm; reported in unit of counts/km2), and macroplastics (i.e. plastics measuring greater than 25 mm; reported in unit of counts/km2) around Kuroshio Current, western North Pacific collected from 2014-02-03 to 2014-03-01. These plastics in the surface water were collected using a neuston net (450 µm mesh size) by horizontally towing the net over the sea surface for 10 min at a ship speed of approximately three knots at each station. This dataset contains the results from all 132 surface water samples, in a spreadsheet format.

Dataset Citation

Cite as: Thushari, Gajahin Gamage Nadeeka; Miyazono, Kentaro; Sato, Takuya; Yamashita, Rei; Takasuka, Akinori; Watai, Mikio; Yasuda, Tohya; Kuroda, Hiroshi; Takahashi, Kazutaka (2023). Estimations of floating microplastics, mesoplastics, and macroplastics around Kuroshio Current, western North Pacific collected from 2014-02-03 to 2014-03-01 (NCEI Accession 0279325). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0279325. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0279325

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Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats	Excel
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov

Time Period	2014-02-03 to 2014-03-01
Spatial Bounding Box Coordinates	West: 130 East: 141.008333 South: 28.998333 North: 35.001667
Spatial Coverage Map

General Documentation

NCEI Dataset Landing Page
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Descriptive Information
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Associated Resources

The NOAA NCEI Global Marine Microplastics Database (1972-present)
- NCEI Collection
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Thushari GGN, Miyazono K, Sato T, Yamashita R, Takasuka A, Watai M, Yasuda T, Kuroda H, Takahashi K. Floating plastic accumulation and distribution around Kuroshio Current, western North Pacific. Marine Pollution Bulletin. 2023 Jan 25; 188, 114604.
- https://doi.org/10.1016/j.marpolbul.2023.114604
  journal article

gov.noaa.nodc:NCEI-Marine-Microplastics

Publication Dates	publication: 2023-06-23
Data Presentation Form	Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status	Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility
Data Update Frequency	As needed
Supplemental Information	Submission Package ID: TTMNDE
Purpose	These plastic concentration data were collected in order to determine their abundance in the surface waters around Kuroshio Current, western North Pacific during 2014-02-03 to 2014-03-01
Use Limitations	accessLevel: Public Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Dataset Citation	Cite as: Thushari, Gajahin Gamage Nadeeka; Miyazono, Kentaro; Sato, Takuya; Yamashita, Rei; Takasuka, Akinori; Watai, Mikio; Yasuda, Tohya; Kuroda, Hiroshi; Takahashi, Kazutaka (2023). Estimations of floating microplastics, mesoplastics, and macroplastics around Kuroshio Current, western North Pacific collected from 2014-02-03 to 2014-03-01 (NCEI Accession 0279325). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0279325. Accessed [date].
Cited Authors	Thushari, Gajahin Gamage Nadeeka University of Tokyo Miyazono, Kentaro Sato, Takuya Yamashita, Rei Takasuka, Akinori Watai, Mikio Yasuda, Tohya Kuroda, Hiroshi Takahashi, Kazutaka
Contributors	University of Tokyo
Resource Providers	Gajahin Gamage Nadeeka Thushari University of Tokyo University of Tokyo
Points of Contact	Ebenezer Nyadjro Mississippi State University; Northern Gulf Institute (NGI)
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	Related Funding Agency: Japan Environmental Restoration and Conservation Agency Environment Research and Technology Development Fund (#1-2201) Related Funding Agency: Nippon Foundation Research Project on Marine Plastics

Theme keywords	NODC DATA TYPES THESAURUS microplastic concentration NODC OBSERVATION TYPES THESAURUS in situ laboratory analyses WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > WATER QUALITY > SEA SURFACE CONTAMINANTS > MICROPLASTIC CONCENTRATION
Data Center keywords	NODC COLLECTING INSTITUTION NAMES THESAURUS University of Tokyo NODC SUBMITTING INSTITUTION NAMES THESAURUS University of Tokyo
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS Fourier-transform infrared (FTIR) spectrometer microscope Neuston net Global Change Master Directory (GCMD) Instrument Keywords FTIR SPECTROMETER > Fourier Transform Infrared Spectrometer MICROSCOPES > MICROSCOPES NEUSTON NET
Place keywords	NODC SEA AREA NAMES THESAURUS East China Sea (Tung Hai) North Pacific Ocean Philippine Sea Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > EAST CHINA SEA Provider Place Names Kuroshio Current Western North Pacific Ocean
Keywords	NCEI ACCESSION NUMBER 0279325

Use Constraints	Cite as: Thushari, Gajahin Gamage Nadeeka; Miyazono, Kentaro; Sato, Takuya; Yamashita, Rei; Takasuka, Akinori; Watai, Mikio; Yasuda, Tohya; Kuroda, Hiroshi; Takahashi, Kazutaka (2023). Estimations of floating microplastics, mesoplastics, and macroplastics around Kuroshio Current, western North Pacific collected from 2014-02-03 to 2014-03-01 (NCEI Accession 0279325). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0279325. Accessed [date].
Access Constraints	Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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.

Lineage information for: dataset
Processing Steps	2023-06-23T16:45:29Z - NCEI Accession 0279325 v1.1 was published.
Output Datasets	NCEI Accession 0279325 v1.1 NCEI Accession 0279325 v1.1 (download) published 2023-06-23T16:45:29Z

Lineage information for: dataset
Processing Steps	Parameter or Variable: microplastic concentration (measured); Units: counts/km2; Observation Category: in situ; Sampling Instrument: Neuston net; Sampling and Analyzing Method: The field sampling survey was conducted using a black-colored neuston net (450 μm mesh size) with a frame of 0.75 m in height and 1.3 m in width by horizontally towing the net over the sea surface for 10 min at a ship speed of approximately three knots at each station. In general, sampling continued along meridional (north to south) transects. Plastic debris were immediately preserved in 5 % formalin until further analysis in a laboratory. Floating plastic debris were separately isolated from the settled supernatant of each sample. The same protocol was repeated several times with gradual shaking to ensure that all the plastics were extracted from the samples. The extracted plastics were carefully collected on a nylon mesh of 200 μm in size and gently rinsed with Milli-Q water. After rinsing, the samples were dried at room temperature prior to categorization, counting and measuring the plastic sizes.; Data Quality Method: Quality control measures were adopted to prevent potential cross contamination during the laboratory analyses. Instead of plastic consumables, glass jars and glassware were always used for laboratory analyses. In the laboratory, a clean benchtop working surface was used to prevent contamination. Prior to the analysis, the reusable apparatus and equipment were thoroughly rinsed using tap water under high pressure. Furthermore, the hands of the investigator were thoroughly washed and scrubbed as a quality control measure. During laboratory analysis, the collected plastic samples were gently covered with aluminum foil. The identified plastic samples were further confirmed, and the polymer composition was analyzed using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy in the range of 400–4000 cm-1 at 4 cm-1 resolution and 8 scans. Chemical fingerprints were evaluated by comparing the similarities of the peaks in the infrared absorption spectra of the sample with reference databases (HR Hummel Polymer and Additives, HR Polymer Additives and Plasticizers, HR Spectra Polymer and Plasticizers, and Hummel Polymer Sample Library). The lowest acceptable Hit Quality was set as 70 %..

Lineage information for: dataset

Processing Steps

Parameter or Variable: microplastic concentration (measured); Units: counts/km2; Observation Category: in situ; Sampling Instrument: Neuston net; Sampling and Analyzing Method: The field sampling survey was conducted using a black-colored neuston net (450 μm mesh size) with a frame of 0.75 m in height and 1.3 m in width by horizontally towing the net over the sea surface for 10 min at a ship speed of approximately three knots at each station. In general, sampling continued along meridional (north to south) transects. Plastic debris were immediately preserved in 5 % formalin until further analysis in a laboratory. Floating plastic debris were separately isolated from the settled supernatant of each sample. The same protocol was repeated several times with gradual shaking to ensure that all the plastics were extracted from the samples. The extracted plastics were carefully collected on a nylon mesh of 200 μm in size and gently rinsed with Milli-Q water. After rinsing, the samples were dried at room temperature prior to categorization, counting and measuring the plastic sizes.; Data Quality Method: Quality control measures were adopted to prevent potential cross contamination during the laboratory analyses. Instead of plastic consumables, glass jars and glassware were always used for laboratory analyses. In the laboratory, a clean benchtop working surface was used to prevent contamination. Prior to the analysis, the reusable apparatus and equipment were thoroughly rinsed using tap water under high pressure. Furthermore, the hands of the investigator were thoroughly washed and scrubbed as a quality control measure. During laboratory analysis, the collected plastic samples were gently covered with aluminum foil. The identified plastic samples were further confirmed, and the polymer composition was analyzed using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy in the range of 400–4000 cm-1 at 4 cm-1 resolution and 8 scans. Chemical fingerprints were evaluated by comparing the similarities of the peaks in the infrared absorption spectra of the sample with reference databases (HR Hummel Polymer and Additives, HR Polymer Additives and Plasticizers, HR Spectra Polymer and Plasticizers, and Hummel Polymer Sample Library). The lowest acceptable Hit Quality was set as 70 %..

Acquisition Information (collection)
Instrument	Fourier-transform infrared (FTIR) spectrometer microscope Neuston net

Last Modified: 2024-02-17T16:29:52Z
For questions about the information on this page, please email: ncei.info@noaa.gov

Estimations of floating microplastics, mesoplastics, and macroplastics around Kuroshio Current, western North Pacific collected from 2014-02-03 to 2014-03-01 (NCEI Accession 0279325)

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