Fig. 4: Levels of Escherichia coli and ESBL-E. coli in influent, effluent, and biosolid samples in each of the six WWTPs analysed (P1-P6).
From: Longitudinal study on the multifactorial public health risks associated with sewage reclamation

Whiskers in box are drawn min. to max., box extends from the 25th to 75th percentiles, and the line within the box represents the median. Coloured circles above a box indicate significant differences between that box and the box with that same colour (p < 0.05). CFU colony forming unit ESBL-E. coli extended spectrum beta-lactamases producing Escherichia coli.