RESUMO
<p><b>OBJECTIVE</b>To investigate Benzo (a) pyrene (BaP) residue in retail food of Xiamen.</p><p><b>METHODS</b>BaP residue in 121 retail food samples collected from Xiamen were determined by a rapid BaP detector based on derivative constant-energy synchronous fluorescence technique.</p><p><b>RESULTS</b>BaP was detected in 84.3% samples and the concentration were ranged from 0.17 to 59.0 microg/kg. There were 49.6% samples exceeding 5.00 microg/kg, and most of them were roasting food (1.44 - 54.10 microg/kg), processed meat products (0.17 - 59.00 microg/kg) and aquatic products (2.79 - 36.80 microg/kg). The BaP concentration in 34 samples collected from roadside stands were 1.78 - 49.60 microg/kg, of which the rate of the samples exceeding 5.00 microg/kg was 88.2%.</p><p><b>CONCLUSION</b>The BaP contamination in retail food samples from Xiamen is serious.</p>