Data: FTIR spectra for particles in subsampled water samples from Southampton Water and analysed for microplastic content'

FTIR spectra for particles identified in subsampled water samples taken in Southampton Water and analysed for microplastic content. Data used in Chapter 3, Seasonal Variation of Microplastics in Southampton Water; from Stead (2021), Fate and Transport of Microplastics within Estuaries (PhD thesis).