The method has implied the DSASE extraction with toluene as solvent; the SPE as clean-up step using NH2 cartridge and GC-MS ion trap system was used as detection method in chemical ionization mode. The final concentrations were around 7.694 to 0.833 μg g-1 for oxoPAHs and 1.627 to 0.332 μg g-1 for nitroPAHs
