Screening of pharmaceuticals and hormones at the regional scale, in surface and groundwaters intended to human consumption

► Traces of 52 substances investigated in 71 surface waters and 70 groundwaters. ► No water was free of pollutants, whatever its origin and the season of collect. ► Globally groundwaters were less contaminated than surface waters in regards pharmaceuticals. ► Hormones were present with comparable frequencies and levels in two compartments.