% organic matter (%OM), % silt, total number of microbeads recovered from sediment and % microbeads for minimum and maximum polymer densities for the 16 study sites.

Two sites (values bolded, 2, Royston, Low Tide and 5/6, Henry Bay, Low and High Tide contained a percent mass of microbead equal to or greater than either %OM or % silt, two key sediment components which govern trace metal behavior within coastal sediments.