Table 3.

Concentrations of ciprofloxacin and sulfamethoxazole determined in raw hospital sewage released from the main building of the CHUV (HOS), at sampling points WTPin and WTPout of Lausanne’s WTP (Blanc, 2010) as well as lake water above the outlet of the WTP discharge pipe (STEP) and a reference point (Bonvin et al., 2011 ), which is located southwest of STEP, 1.5 km from the DP (Swiss coordinates: 533048/150920).

	HOS (ng/l)	WTPin (ng/l)	WTPout (ng/l)	STEP (ng/l)	Ref point (ng/l)
Sulfamethoxazole	1116	248	61	4	0.4
Ciprofloxacin	18281	3259	807	6	0.9