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Original data for article: Microplastics accumulate to thin layers in the stratified Baltic Sea
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This is a duplicate entry for the dataset supporting research on microplastic accumulation in thin stratified layers in the Baltic Sea. It contains sampling coordinates, CTD measurements, and raw FTIR analysis results.
Description of the data and files: The data was created in 2019-2020 and opened in 2021. The dataset consists of two Excel files: BalticSeaMIF_sampling.xlsx contains information about sampling, including coordinates of the sampling sites, depths and volumes of the samples, and as background information CTD (conductivity-temperature-depth) measurements from each sampling site. BalticSeaMIF_rawdata.xlsx contains raw data from the FPA-FTIR measurements. Raw data includes numbers, mass estimations, polymer types, and sizes of microplastics. Additionally, calculations for the background corrected numbers and mass estimations of microplastics per sample are provided. Creation and processing of the data: Data is created by measuring pre-treated and filtered water samples with FPA-FTIR and analysing the spectral data with siMPle (Primpke et al. 2020, Applied Spectroscopy, 74, 1127-1138, https://doi.org/10.1177/0003702820917760). Please see the related article for more details about the methods and results. Purpose and use of the data: Data is published under Creative Commons CC-BY 4.0 license. Data may be useful for comparisons between datasets and meta-analyses of microplastic concentrations in various environments.
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Original data for article: Microplastics accumulate to thin layers in the stratified Baltic Sea
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This is a dataset of raw sampling and FTIR measurement data supporting a published study on microplastic accumulation in thin stratified layers in the Baltic Sea. It is a research data repository entry rather than a standalone article.
Microplastics accumulate to thin layers in the stratified Baltic Sea
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Researchers found that microplastics accumulate preferentially at density-driven stratification layers (halocline and thermocline) in the Baltic Sea, demonstrating that water column stratification significantly influences microplastic vertical distribution and may concentrate particles at biologically active depth boundaries.
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Researchers developed a novel sampling tool capable of collecting several cubic metres of water from predefined depth layers down to 100 m and used it to investigate microplastic distribution in the stratified Baltic Sea during spring thermocline formation. They found strong vertical microplastic stratification at all stations, with fibre-rich surface layers near terrestrial sources and offshore variability linked to thermohaline structure.
Sources and fate of microplastics in marine and beach sediments of the Southern Baltic Sea—a preliminary study
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Researchers investigated microplastic sources and distribution in marine and beach sediments of the southern Baltic Sea — one of the most polluted regional seas — using density extraction and FT-IR identification. The study found widespread contamination with significant variability tied to local sources and hydrodynamic transport patterns.
Data: FTIR spectra for particles in subsampled water samples from Southampton Water and analysed for microplastic content'
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This is a dataset of FTIR spectra from microplastic particles found in Southampton Water samples, supporting a PhD thesis chapter on microplastic distribution in estuaries. It contains no standalone research findings.
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