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The necessity of whole-water-column monitoring: microplastic vertical and horizontal distribution and ecological risk on the Eastern Coast of the inner Gulf of Thailand
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Researchers sampled microplastics at three depth profiles — surface, mid-water, and near-bottom — across 20 coastal stations in the eastern Gulf of Thailand, characterizing particles by size, shape, and polymer type via µFTIR to map vertical and horizontal distribution patterns and calculate ecological risk indices.
This dataset contains the underlying environmental monitoring data for the manuscript: "The necessity of whole-water-column monitoring: microplastic vertical and horizontal distribution and ecological risk on the Eastern Coast of the inner Gulf of Thailand". Data Description The dataset includes microplastic (MP) quantification and characterization data collected from 73 water-column samples across 20 coastal stations in the eastern inner Gulf of Thailand. To assess vertical and horizontal distribution, sampling was conducted across three distinct depth profiles: Surface (0–1 m) Mid-depth (5–10 m) Near-bottom (~1 m above seabed) Variables Included The data details MP concentrations (particles/L), morphological characteristics (shape), size fractions (16–5000 µm), and polymer types identified via μFTIR spectroscopy. Additionally, the dataset supports the spatial interpolation maps, Principal Component Analysis (PCA), and Potential Ecological Risk Index (PERI) calculations presented in the associated study. This dataset contains the underlying environmental monitoring data for the manuscript: "Whole-Water-Column: How Depth and Distance Control Microplastic Fate and Risk in eastern coast of the inner Gulf of Thailand". Data Description The dataset includes microplastic (MP) quantification and characterization data collected from 73 water-column samples across 20 coastal stations in the eastern inner Gulf of Thailand. To assess vertical and horizontal distribution, sampling was conducted across three distinct depth profiles: Surface (0–1 m) Mid-depth (5–10 m) Near-bottom (~1 m above seabed) Variables Included The data details MP concentrations (particles/L), morphological characteristics (shape), size fractions (16–5000 µm), and polymer types identified via μFTIR spectroscopy. Additionally, the dataset supports the spatial interpolation maps, Principal Component Analysis (PCA), and Potential Ecological Risk Index (PERI) calculations presented in the associated study.
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The necessity of whole-water-column monitoring: microplastic vertical and horizontal distribution and ecological risk on the Eastern Coast of the inner Gulf of Thailand
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Researchers sampled microplastics at surface, mid-depth, and near-bottom layers across 20 coastal stations in the Gulf of Thailand, finding significant vertical and horizontal heterogeneity that surface-only monitoring would miss, with depth and distance from shore jointly controlling microplastic fate and ecological risk.
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Researchers mapped microplastic distribution across the inner Gulf of Thailand across wet and dry seasons, finding threefold higher abundances in the dry season, PET as the dominant polymer, and a striking disconnect between a low pollution load index and a serious ecological risk index driven by polymer-specific hazard scores rather than raw particle counts.
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Researchers collected surface water samples from 25 locations in the Inner Gulf of Thailand and found widespread microplastic contamination with varying concentrations and particle types. The study adds to regional evidence that the Gulf of Thailand is significantly impacted by microplastic pollution from both marine and land-based sources.
Spatial heterogeneity distributions and seasonal variations of microplastic contaminations in surface waters and sediments and microplastic pollution level assessments of the inner Gulf of Thailand
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Researchers measured microplastic concentrations in both surface water and sediment across the inner Gulf of Thailand in dry and wet seasons, finding widespread contamination influenced by river discharge and oceanographic conditions. The study provides a baseline for monitoring microplastic pollution levels in this heavily used coastal area.
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Researchers sampled microplastics from the intertidal zone of Mai Khao beach in Phuket, Thailand, during two seasonal sampling events, separating particles into two size classes and analyzing polymer composition using micro-FTIR. They found that fibers dominated at 94.5%, PET was the predominant polymer at 94.7%, and abundances at this site were higher than at other west coast Phuket locations, indicating elevated local anthropogenic input.
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