Study of traffic-related pollution and its treatment with a particular focus on microplastics in tunnel wash and road runoff water

Abstract Treatment of tunnel wash runoff water and road before it reaches the environment is recommended to limit negative consequences traffic-related pollution. The efficiency existing treatment systems remove microplastic (MP) has not been sufficiently documented. Expanding knowledge about MP documenting in (TWW) (RRW) were objectives presented project. TWW from Tåsen tunnel, Norway, RRW Fossbekken sedimentation pond investigated summer winter situations. Six commonly available polymer types, tire rubber tread particles (TRP), marking paints (RMP) analyzed selected samples. About 0.12 0.26 μg/l polymers identified TWWs. Significantly higher paint concentrations sample compared sample. Suspended particle concentration effluent was lower than 0.002 0.0008 masses samples, respectively. TRP samples 0.7 0.2 μg/l, 13.4 RMP found sample, while only 0.008