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Chemical characterisation of weathered polyethylene microplastics in marine coastal waters using OPLS-DA technique and ATR FT-IR spectra
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Chemical characterization of weathered polyethylene microplastics in marine coastal waters using OPLS-DA technique and ATR FT-IR spectra
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Researchers collected floating polyethylene microplastic fragments from four coastal port areas with different human activity levels and applied ATR-FTIR spectroscopy combined with multivariate statistical analysis, revealing that particles near tourist ports showed higher photo-oxidation signatures while industrial port samples had lower carbonyl indices, suggesting distinct weathering histories tied to transport pathways and biofouling.
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