Fig. 2
From: Environmental risks of car tire microplastic particles and other road runoff pollutants
PEC/PNEC ratios of selected substances in surface water (a top) and sediment (b bottom). Selected substances: tire wear particles (TWP_MP), benzo(a) pyrene (BaP), bisphenol A (BPA), di (2-ethylhexyl) phthalate (DEHP), diisodecyl phthalate (DIDP), fluoranthene (Fl), hexa (methoxymethyl) melamine (HMMM), mercaptobenzothiazole (MBT), nonylphenol (NP), 4-tert-octylphenol (OP) and tolyltriazole (TT). PEC and PNEC values are provided in Tables 2 and 3, respectively. PEC values are measured values reported in literature (measured) and extrapolated from values found in literature (estimated). For TWP, the estimated value is the result of modelling [37]. The dashed horizontal line in the figure marks the threshold indicating unacceptable effects on organisms are likely to occur for PEC/PNEC ratio’s higher than 1