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Fig. 3. The aggregate weight of microplastics in water (items per m® water) and sand (items per m? dry sediment) at different sites. Collected MPs were classified according to a) their chemical class

Figure 3 The aggregate weight of microplastics in water (items per m® water) and sand (items per m? dry sediment) at different sites. Collected MPs were classified according to a) their chemical class

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The map of selected beaches in southern coast of Sri Lanka Fig. 1. The map showing sand sampling sites in southern Coast Sri Lanka: TL: Thalalla; DO: Dondra Harbor; WG: Weligama; UW: Unawatuna; GL: Galle; RG: Rathgama; KG: Koggala; HK: Hikkaduwa; KW: Kahawa; AB: Ambalangoda Harbor. (Source: Sri Lankan map source: Earth View Maps, 2018).
The map of selected beaches in southern coast of Sri Lanka Fig. 1. The map showing sand sampling sites in southern Coast Sri Lanka: TL: Thalalla; DO: Dondra Harbor; WG: Weligama; UW: Unawatuna; GL: Galle; RG: Rathgama; KG: Koggala; HK: Hikkaduwa; KW: Kahawa; AB: Ambalangoda Harbor. (Source: Sri Lankan map source: Earth View Maps, 2018).
Abundance of microplastics in sand (items per m? dry sediment) and in surface water samples (items per m° water) at different sites. Values in parentheses represent (mean + SE).
Abundance of microplastics in sand (items per m? dry sediment) and in surface water samples (items per m° water) at different sites. Values in parentheses represent (mean + SE).
Fig. 2. Abundance of the counts of MPs floating in water (items per m? water) and sand (items per m? dry sediment) at the different sites
Fig. 2. Abundance of the counts of MPs floating in water (items per m? water) and sand (items per m? dry sediment) at the different sites
Sediment type of selected beaches in southern Sri Lanka according to the Wentworth size class and Percentage of shapes of microplastics at all sites. Both sand samples and water samples were considered. using Raman spectroscopy; b) their geometric shape of pellet (pre- production resin pellets, sometimes called nurdles), fragment (hard ir- regular pieces), film (thin, flexible pieces), line and foam; and c) color.
Sediment type of selected beaches in southern Sri Lanka according to the Wentworth size class and Percentage of shapes of microplastics at all sites. Both sand samples and water samples were considered. using Raman spectroscopy; b) their geometric shape of pellet (pre- production resin pellets, sometimes called nurdles), fragment (hard ir- regular pieces), film (thin, flexible pieces), line and foam; and c) color.
Percentage of polymer types and of microplastics in all sites along South coast Sri Lanka. MP samples from sand and surface water combined. Table 3
Percentage of polymer types and of microplastics in all sites along South coast Sri Lanka. MP samples from sand and surface water combined. Table 3
Fig. 4. The mean size of microplastics (mm) isolated from sand and water at selected sites. Standard error bars also shown
Fig. 4. The mean size of microplastics (mm) isolated from sand and water at selected sites. Standard error bars also shown
Fig. 5. Raman spectra of a polyethylene (top) and polypropylene (bottom) microplastic sample.
Fig. 5. Raman spectra of a polyethylene (top) and polypropylene (bottom) microplastic sample.
Fig. 6. The geometry of microplastics collected from beach and surface water at different sites. S - beach sediment and w - surface water
Fig. 6. The geometry of microplastics collected from beach and surface water at different sites. S - beach sediment and w - surface water
Fig. 8. A FTIR-ATR spectrum showing the lack of typical carbonyl absorption band (peak of 1715-1775 cm‘) in a majority of the collected microplastics. Nicolet iS5 FTIR spectrometer used at a resolution of 4.0cm~?. Fig. 7. Color of aggregated microplastics from all sites. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
Fig. 8. A FTIR-ATR spectrum showing the lack of typical carbonyl absorption band (peak of 1715-1775 cm‘) in a majority of the collected microplastics. Nicolet iS5 FTIR spectrometer used at a resolution of 4.0cm~?. Fig. 7. Color of aggregated microplastics from all sites. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
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