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Fig. 9. Polycyclic aromatic hydrocarbon (PAH) patterns in the soil material (sieved to 2 mm), in the filtrate and in the retentate. Slow column filtrate: solid triangles; fast column filtrate: solid circles; slow column retentate: solid diamonds; fast column retentate: solid squares; soil material: crosses. Flow-interrupts are indicated by the vertical lines.
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