The LCI of stack emissions can depend on either field data or mass emission limits based on regulatory requirements as upper bound constraints (Kaplan et al., 2009). In this study, air emission for the municipal waste incineration is estimated with APC 7. Technical configuration of APC 7 includes particle removal, semi-dry scrubbing, dioxin filter, flue gas condensation and deNOx-technology (SCR) (Damgaard, 2010). Finally, solid residues that come from filter dust, sludge residues (gas-scrubbing system) and burning residues (ash) are delivered to the inert landfill without any energy recovery selected from SimaPro 8.0.2.