Thermoplastic road markings - Description and microplastic pollution estimate in Sweden.

Road markings were sometimes reported as meaningful contributors to microplastic pollution. To estimate their wear, 126 pedestrian crossings, which constitute the worst-case scenario because all passing vehicles encroach on them, were analysed for luminance loss as an indicator of complete abrasion. The assessment was done in Sweden, where thermoplastic road marking materials prevail - unique because they can be made with polymeric or non-polymeric binders.