Estuarine Sedimentary Microplastics from City to Sea: Narragansett Bay, Rhode Island, USA

Count and polymer characterization data for microplastics extracted from shoreline and estuarine sediments around Narragansett Bay, Rhode Island, USA. Microplastics (63µm - 5 mm) were extracted from sediment using a dense solution of sodium iodide (NaI) followed by enumeration via microscopy and polymer characterization via Fourier-transform infrared spectroscopy (FTIR)(Shimadzu IRTracer-100). Concentrations are reported in # MP particles per kg dry weight (DW) sediment.