A　total　of　175　samples　of　18　types　of　food　were　collected　from　markets　in　Shanghai,　China,　and　the　concentrations　and　bioaccessibility　of　15　priority-controlled　polycyclic　aromatic　hydrocarbons　(PAHs)　in　these　samples　were　determined.　The　mean　concentrations　of　PAHs　varied　between　2.4　and　47.1　ng　g(-1)　wet　weight,　with　the　highest　being　observed　in　snail　and　lowest　in　chicken.　The　concentrations　were　lower　than　the　maximum　levels　of　PAH　allowed　for　food　per　EU　regulations.　Among　the　PAHs　measured,　phenanthrene　was　the　predominant　one.　Most　of　the　PAHs　originated　from　pyrogenic　sources,　analysed　using　molecular　indices.　The　mean　bioaccessibility　of　PAHs　varied　from　29.0%　to　61.2%　as　measured　by　simulating　the　human　gastrointestinal　digestion　process.　Linear　relationships　between　the　bioaccessibility　and　lipid　contents　were　observed　for　most　PAH　congeners.　The　daily　intake　of　PAHs　by　an　average　Shanghai　resident　was　848　ng　day(-1)　and　decreased　to　297　ng　day(-1)　when　the　bioaccessibility　of　PAHs　were　considered,　demonstrating　that　most　intake　might　have　been　overestimated.　According　to　the　potency　equivalent　concentrations　and　screening　values　of　PAHs,　consumption　of　snail　and　clam,　especially　snail,　should　be　limited.