Since there were very few direct emissions from the foreground system (Table 1), most of the inventory was from the background system. Ecoinvent v. 2.2 database was used to model the background processes (Ecoinvent, 2010). The Ecoinvent 2.2. database includes 4373 emission and resource use categories (B matrix). In order to simplify the analysis, the results were characterized with a C matrix before use. ReCiPe LCIA model (Goedkoop et al., 2009) was used to characterize the emissions into 18 midpoint impact categories, using the generally recommended characterization dataset (hierarchist).