“…Although the equilibrium between the atmosphere and vegetation depends on ambient temperature, Simonich and Hites (1994) suggested that most of the PAHs absorbed by vegetation at the end of the growing season are incorporated into the soil and permanently removed from the atmosphere. In addition to mosses, other main bioaccumulators used to date for monitoring atmospheric PAH deposition are lichens (Augusto et al, 2010;Blasco et al, 2011;Guidotti et al, 2003;Migaszewski et al, 2002;Shukla and Upreti, 2009), leaves from deciduous broad-leave trees (Howsam et al, 2000;Jouraeva et al, 2002;Tian et al, 2008;Wang et al, 2008) or evergreen broad-leave trees (De Nicola et al, 2011;Müller et al, 2001;Prajapati and Tripathi, 2008) and conifer needles (Amigo, 2011;Augusto, 2010;Brorström-Lundén and Löfgren, 1998;Holoubek et al, 2007;Klánová et al, 2009;Lehndorff and Schwark, 2009a,b;Migaszewski et al, 2002;Piccardo et al, 2005;Tian et al, 2008). In higher plants, uptake of POPs from the air will either be in gaseous form via the stomata or via deposition to the cuticle and subsequent absorption of the lipophylic, organic compound (Paterson et al, 1990).…”