Fig. 6

Proportions of studies (%) regarding liquid and solid matrices as population in sub-question S2 (n = 781 studies). DWTP for drinking water treatment plant and WWTP for wastewater treatment plant
Proportions of studies (%) regarding liquid and solid matrices as population in sub-question S2 (n = 781 studies). DWTP for drinking water treatment plant and WWTP for wastewater treatment plant