Changings of Polycyclic Aromatic Hydrocarbons in Aquatic Organisms and Sediment at Guimaras after Oil Spill

Following the oil spill accident of the Solar I tanker in 2006 off the coast of Guimaras Island in the Philippines, polycyclic aromatic hydrocarbons (PAHs) in shellfish was investigated at Luzaran in Guimaras Islands, which was heavily polluted with spilled oil, from September 2006 (1 month after the accident) to June 2008. Although concentrations of total PAHs extremely decreased during 3 months after oil spill, those slowly changed in the following period. The relative high molecular weight PAHs such as benzo(b)fluor- anthene, benzo(k)fluoranthene, benzo(a)pyrene, dibenz(a,h)-anthracene, indeno(1,2,3-cd)pyrene, and benzo(g,h,i)perylene also tended to be residue in shellfish.