Seasonal Monitoring of Cardiovascular and Antiulcer Agents’ Concentrations in Stream Waters Encompassing a Capital City

Table 5

Seasonal variations of the measured concentrations.

Compounds	Average concentrations (ng L^−1)
	Aranyhegyi Stream				Hosszúréti Stream
	April	July	October	January	April	July	October	January
Atenolol	75	37	52	54	76	38	65	92
Atorvastatin	213	99	54	91	—	—	—	—
Famotidine	160	194	23	236	225	94	32	247
Metoprolol	257	871	3279	511	77	677	785	561
Nizatidine	57	88	10	52	30	13	11	41
Pantoprazole	33	13	20	61	4	14	28	12
Propranolol	5	21	95	24	7	32	46	30
Ramipril	14	17	8	16	8	26	8	8
Ranitidine	429	122	93	385	158	102	60	347
Sotalol	154	184	73	227	314	154	174	203