The　pollution　load　of　urban　runoff　is　boosted　due　to　the　washing　away　of　road-deposited　sediment　(RDS).　Therefore,　a　source-oriented　mitigation　strategy　is　essential　to　integrated　stormwater　management.　This　study　showcases　the　influence　of　land　use　dependent　source　apportionment　and　risk　assessment　of　polycyclic　aromatic　hydrocarbons　(PAHs)　in　RDS.　Samples　were　collected　from　areas　of　different　land　uses,　including　commercial　city　centre,　highway,　residential　rural　and　campus　areas.　According　to　the　positive　matrix　factorisation　(PMF)　receptor　model,　different　primary　sources　were　identified　at　different　land　use　areas.　Generally,　potential　sources　of　gasoline-　and　diesel-powered　engine　emissions　and　other　pyrogenic　sources　of　biomass,　coal,　and　wood　combustions　were　identified　as　main　sources　of　PAH　content　in　RDS.　The　source　specific　risks　posed　by　PAHs　at　different　land　uses　were　further　estimated　by　the　incremental　lifetime　cancer　risk　(ILCR).　This　shows　that　the　mean　ILCRs　of　the　total　cancer　risk　for　children　and　adults　at　the　given　land　uses　were　lower　than　the　baseline　value　of　an　acceptable　risk.　However,　the　potential　exposure　risk　to　RDS　adsorbed　PAHs　for　children　was　considerably　higher　than　that　for　adults.　Vehicular　emissions　and　wood　combustion　were　the　major　contributors　to　the　cancer　risk　with　average　contributions　of　57　and　29%,　respectively.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.