Table 1.
Search terms used to identify the evidence available on sampling and analytical methods used to characterise microplastics in freshwaters and estuaries.
| Population | Intervention | Outcome |
|---|---|---|
| aggregate * | spectroscop * | count |
| colloid * | raman | quantif * |
| floc * | particle analysis | abundance |
| plankton * | pyrolysis | concentrate * |
| sediment * | sampl * | density |
| diet * | separat * | substance |
| content | identif * | state |
| * fibre | flotat * | morphology |
| * fiber | floatat * | dimension |
| * bead | microscop * | composition |
| fragment * | digest * | |
| pellet * | centrifuge * | |
| flake * | buoyan * | |
| nurdle | ||
| dust |
* is a wildcard used to indicate any character string, to maximise search results.