FTIR Sensor for Analysis of (Micro)Plastic Occurrence and Sources in Urban Catchments (2025-2026)

Microplastics in urban environments have emerged as a growing environmental concern. In addition to well-known sources such as tire and road wear, there are indications that paints and other plastic-based surface materials in cities may contribute to the spread of microplastics. However, knowledge of the significance of these sources in stormwater remains limited.

This project aims to map the occurrence of microplastics originating from paints and other plastic surfaces in urban stormwater runoff. Using a handheld FTIR sensor (Fourier Transform Infrared spectroscopy), different types of plastic materials will be identified and classified.

The study will be carried out in selected urban areas where data on stormwater and receiving water quality are already available, for example Uppsala, Norrköping, and Luleå. The exact study locations will be determined at a later stage of the project.

The objective of this project is to improve understanding of the occurrence and types of microplastics from paints and plastic surfaces in urban environments, as well as their potential contribution to stormwater pollution.

The project is funded by the Swedish Environmental Protection Agency.