This study estimated the concentration of surface microplastics (i.e. plastics measuring less than 5mm; reported in unit of items/m3) in the Arrábida coastal area, Portugal from 2018-08-22 to 2019-02-27. Microplastics in the surface water were collected using a neuston net. This dataset contains the results from all 36 surface water samples, in a spreadsheet format

This dataset contains surface microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces/m^3) concentration in the Brazilian Amazon Continental Shelf from 2018-03-13 to 2018-10-23. Microplastics data was collected during two oceanographic cruises: one in March (rainy season) and the other in October (dry season) of 2018. The microplastics sampling effort involved using a 20L aluminum bucket to collect 60L of surface water and filtered through a 64-μm mesh plankton net. This dataset contains the results from all 57 sampling efforts, in a spreadsheet format.

This study estimated the concentration of surface microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces/m3) in the Salento coastal seas (Southern Puglia, Italy) from 2020-10-17 to 2021-06-28. Microplastic data were collected aboard R/V Pelagia using a manta net. This dataset contains the results from all 18 surface water samples, in a spreadsheet format.

This study estimated the concentration of microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces/m3) in the surface sediments of Xialiao Beach, New Taipei City, Taiwan from 2017-07-06 to 2017-07-25. Microplastic data were collected using a metal scoop. This dataset contains the results from all 80 surface sediment samples, in a spreadsheet format.

This study estimated the concentration of microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces per g d.w.) in deep-sea sediments from Rockall Trough (Scotland, UK) on 2017-05-18. Microplastic data were collected aboard RRS Discovery using a megacorer. This dataset contains the results from all 90 deep-sea sediment samples, in a spreadsheet format.

This study estimated the concentration of microplastics (i.e. plastics measuring less than 5mm; reported in unit of items/kg d.w) in beach sediments along the Thoothukudi coast, Gulf of Mannar region, India, during 2021-01-03 to 2021-06-08. Microplastics in the sediments were collected using a shovel. This dataset contains the results from all 36 sediment samples, in a spreadsheet format.

This study was carried out to estimate the microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces/m^3) concentration in the Bay of Bengal and South Pacific Ocean. Microplastics data was collected from 2013-05-27 to 2015-11-04. The Bay of Bengal expedition was aboard SV Mir while the South Pacific Ocean expedition was aboard RV Cabo de Hornos. During the two expeditions, the study investigated whether the microplastics sampling instruments, the new, high-speed AVANI trawl (All-purpose Velocity Accelerated Net Instrument) collected similar amounts and types of microplastics as two established scientific trawl designs, the manta trawl and the neuston net. The AVANI trawl can collect microplastics from the sea surface at relatively higher speeds up to 8 knots and during long transits (allowing for a nearly continuous sampling effort over long distances), whereas the manta and neuston trawls must be towed slowly in a less turbulent sea state and often represent shorter tow lengths. This dataset contains the results from all 36 sampling stations in the Bay of Bengal and 52 sampling stations in the South Pacific Ocean, in a spreadsheet format.

This study estimated the concentration of microplastics (i.e. plastics measuring less than 5mm) in the surface water (reported in unit of pieces/m3), beach sediments (reported in unit of pieces/m3), and crude salt (reported in unit of pieces/kg), in the northern Bay of Bengal, Bangladesh coast during 2019-03-22 to 2020-01-05. Microplastics in the surface water were collected using a manta net while those in the sediment and crude salt were collected using a trowel. This dataset contains the results from all 18 surface water, 60 sediment, and 27 crude salt samples, in a spreadsheet format.

This study estimated the concentration of microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces/kg d.w.) on beaches along the western Gulf of Thailand during 2019-09-22. Microplastic data were collected using a metal spoon. This dataset contains the results from all 25 beach samples, in a spreadsheet format.

This study was carried out to estimate the microplastics (i.e. plastics measuring less than 5mm, reported in unit of pieces per 100 g of d.w.) concentration in benthic sediments in primary fishing grounds in the northeast Atlantic Ocean. Microplastics data was collected from 2020-06-07 to 2021-02-27 using a Day grab. This dataset contains the results from all 17 sampling efforts, in a spreadsheet format.