MPsizeBase: a database for particle size distributed environmental microplastic data

Summary

MPSizeBase is a publicly accessible database compiling microplastic particle size distribution and concentration data from published studies, standardised to a common 1–5000 µm range using power-law fitting to enable direct comparison across studies that used different measurement approaches. This kind of harmonised data resource is important for meta-analyses and for converting microplastic measurements into consistent units that can feed into risk assessments and regulatory frameworks.