Mean concentration and load of pharmaceuticals measured within the Benson and Oxford WWTP on November 10–11, 2009 (n = 24).

Percent loss calculated from change in daily pharmaceutical load between the influent and effluent.a Mean concentrations are followed by standard deviation for all samples >LOQ during the 24-hour sampling.b Negative values indicate a concentration increase from inlet to outlet. ‘LOQ. na = not applicable.Mean concentration and load of pharmaceuticals measured within the Benson and Oxford WWTP on November 10–11, 2009 (n = 24).