Treatment | Drug for | Occurrence | Concentration | Reference |
---|---|---|---|---|
Anti-depressant, anti-anxiety, anti-stress | Treatment of insomnia, seizures and alcohol withdrawal | Llobregat River; Northeastern Spain | ~ 3 ng L− 1 | [199] |
River water; Madrid | ~ 21 ng L− 1 | [200] | ||
River water; Germany | ~ 33 ng L− 1 | [201] | ||
Nansha River; suburban Beijing | ~ 5 ng L− 1 | [202] | ||
Municipal sewage treatment plant (STP) effluents; Xiamen | ~ 10 ng L− 1 | [203] | ||
Slaughterhouse wastewater; suburban Beijing | ~ 16 ng L− 1 | [202] |