Efficient pretreatment method for analyzing microplastics in urban road dust containing composite materials.

ABSTRACT: Tire wear particles (TWPs) and road marking paint (RMP) fragments are main sources of composite microplastics (MPs) in urban road dust and contribute significantly to the load of MPs in water environments. However, few studies have investigated the influence of organic decomposition such as cellulolytic enzyme decomposition (EZM) and Fenton (FT), on the abundance and characteristics of composite MPs in the environment. This study aimed to evaluate an organic matter decomposition method suitable for MP analysis using urban road dust containing composite materials, focusing on EZM and FT methods. The EZM has 1.1-4.5 times as high recovery of synthetic polymers as FT based on particle number. The difference in the number of orange particles was thought to be one of the factors behind this. So

SUBMITTER: Yamamoto K 

PROVIDER: S-EPMC11822084 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature