Fig. 3.

Average measured internal pH in E. fetida in different soil types at the end of the uptake (grey) and depuration (white) phase after exposure to carbamazepine, diclofenac fluoxetine and orlistat (n = 6, ±standard deviation). Measurements which are significantly different to the control are denoted by an ‘a’ and where there is a statistically significant difference between internal pH in uptake phase and depuration phase these are denoted by a ‘b’ (p < 0.05).