Collected from the Venice Lagoon (Italy). Recommended valuesCompound ng/g Compound ng/gp,p’-DDE . 1.2 Acenaphthylene . 47Aroclor 1254 . 36 Acenaphthene . 16n-C 17 . 380 PCB 28. 1Phenanthrene . 160 PCB 31. 0.762-Methylphenanthrene . 31 PCB 52. 2.51-Methylp