Assessing the Discharge of Pharmaceuticals Along the Dutch Coast of the North Sea - Reviews of Environmental Contamination and Toxicology - page 5

Fig. 1 Sampling locations (•) in the Netherlands. EYS Eijsden, LOB Lobith, SOD Schaar van
Ouden Doel, AND Andijk-Ysselmeer, MAA Maassluis, HAR Haringvliet
L -sw out = Load of pharmaceuticals entering the DCZ with surface water in 2002
(t yr −1 ).
L -sew out = Load of pharmaceuticals entering the DCZ with sewage water in 2002
(t yr −1 )
L -ind out = Load of pharmaceuticals entering the DCZ with industrial water in
2002 (t yr −1 ).
Q a = Average flow rate at sample location in 2002 (10 9 m 3 yr −1 ).
C = Average concentration of a pharmaceutical in surface water (SW), sewage
water (SEW) or industrial water (IND) in 2002 (ng L −1 ).
f = Correction factor (corrects for loads in unsampled surface waters entering the
Netherlands and DCZ).