Abbildung 3From: Akkumulation von Metallen und Stickstoff in Moosen in Nordrhein-Westfalen 1990 – 2005 (Accumulation of metals and nitrogen in mosses in North Rhine-Westfalia 1990–2005)Stickstoffakkumulation in Moosen Nordrhein-Westfalen 2005[23].Back to article page