Microplastics in Soils – Analytical Methods

On January 30, 2020, researchers with the University of Bayreuth, Germany, published a paper in the ACS journal Environmental Science and Technology https://doi.org/10.1021/acs.est.9b04618 – “… a critical review on the different published methods for sampling, extraction, purification, and identification/quantification of microplastics in complex environmental matrices, with the main focus on their applicability for soil samples. While large microplastic particles can be manually sorted out and verified with chemical analysis, sample preparation for smaller microplastic analysis is usually more difficult. Of the analytical approaches proposed in the literature, some are established, whereas others are a proof of principle and have not yet been applied to environmental samples. For the sake of development, all approaches are discussed and assessed for their potential applicability for soil samples. So far, none of the published methods seems ideally suitable for the analysis of smaller microplastics in soil samples, but slight modifications and combinations of methods may prove promising and need to be explored …” #PlasticWaste #MicroPlastics