Application of pyrolysis-GC/MS for the characterisation of environmental changes in the salt marshes of the Tagus estuary(Portugal)

2 pages, 1 figure, 3 references.-- Póster presentado al citado congreso en la Sesión I: Environment and Pollution (E) Nº 121.-- Book of Abstracts of the Communications presented to the 26th International Meeting on Organic Geochemistry (IMOG), held in Costa Adeje, Tenerife – Spain, September 15 – 20, 2013.Salt marshes and estuaries are key environments for organic matter (OM) burial, which plays an essential role in the global carbon cycle (López-Capel et al., 2006). Common to these environments is the diversity of OM sources, which is usually composed by a complex mixture of terrestrial and marine residues originated from the decomposition of vegetal, animal and microbial organisms (Hedges and Keil, 1999). Concomitantly, anthropogenic contaminants are transported and deposited.Peer reviewe