Rapid GC-FPD determination of organophosphorus pesticide residues in Sicilian and Apulian olive oil

Seventy-nine samples were collected from Sicilian and Apulian individual growers during 2002-2003. Only 16% of the samples contained fenthion in concentrations ranging from 0.09 to 0.73 mg/kg; no other pesticides were detected in the 79 samples.