Collected from a harbour in Nova Scotia.Polycyclic Aromatic Compounds mg/kg (ppm) Polycyclic Aromatic Compounds mg/kg (ppm)of dry sediment of dry sedimentNaphthalene. 2.14 ± 0.02 Fluoranthene . 25.33 ± 0.111-Methylnaphthalene. 0.73 ± 0.02 Pyrene . 18.0 ±