Fig. 6: Levels of microplastics in wastewater samples.
From: Longitudinal study on the multifactorial public health risks associated with sewage reclamation

Concentration (log P/L) of total particles (T)-P and sieved particles (>300 μm, (S)-P) in influent and effluent wastewater samples in even months over a one-year period in six different WWTPs (P1-P6).