Assessment of marine sediment remediation efficiency with SPME-based passive sampling measurement

Passive sampling has been shown to be a suitable procedure assess the risk of contaminated sediments through measurement freely dissolved concentrations (CFree) and remedial actions involving amendments such as activated carbon (AC). Here we report results application simple, solvent-free solid phase micro extraction methodology (SPME) performance different materials for remediation selected Norwegian harbour with polycyclic aromatic hydrocarbons (PAHs) polychlorinated biphenyls (PCBs). AC enabled reduction availability PAHs and/or PCBs by factor ten over one hundred in Aker Brygge (Oslo) from Elkembukta, impacted industrial emissions with/from coal tar pitch. Another material, anthracite, slightly less effective this set experiment than AC, showed nonetheless great promise capping material. The SPME data are put perspective equilibrium measurements CFree organochlorines silicone rubber other Elkembukta collected vicinity those used experiments. A sediment Cfree pyrene, benzo[a]pyrene benzo[ghi]perylene inner on average 407, 6.3 0.82 ng L?1 values of/or below 1.3, 0.15 0.076 L?1, respectively can expected upon AC. For outer, sediment, would reduce 36, 0.81 0.13 value or 0.06, 0.03 0.005 these three compounds, respectively. Differences pattern PAH organochlorine contamination outer discussed.