Fig. 1From: Poison in paradise: increase of toxic effects in restored sections of two rivers jeopardizes the success of hydromorphological restoration measuresSampling sites at the river Horloff (a) and sampling sites at the river Nidda (b). Black: wastewater treatment plant, white: reference sites, with H3R and N2R as statistical reference sites, light grey: sites in restored section, dark grey: transect sites. Maps were modified with Adobe® Photoshop CC (Version 20.0.0, Adobe Systems Incorporated, San José, California, US) and are based on kompass.de [39]Back to article page