Modeling the importance of biota and black carbon as vectors of polybrominated diphenyl ethers (PBDEs) in the Baltic Sea ecosystem.

摘要: The POPCYCLING-Baltic model, a nonsteady state spatially resolved mass balance model of chemical transport in the Baltic Sea environment, was modified to include black carbon (BC), dissolved organic (DOC) and food-web bioaccumulation. importance these modifications PBDE congeners BDE-47, -99, -153, -209 assessed by comparing time-series simulated with without biota between 1970 2005. Inclusion improved fit measurements from air, soil, biota, had major effect on balance. Modeled bulk concentrations PBDEs sediments soils increased factor 3 while decreased 2−5. Black also doubled recovery time system due limited availability for degradation. In comparison, inclusion only minor overall times. is constructed as flexible matrix an...