The　lake　riparian　zone　(LRZ)　is　a　key　area　of　material　circulation　between　terrestrial　and　aquatic　ecosystems.　However,　the　exchange　of　endocrine　disrupting　compounds　(EDCs)　in　this　area　is　still　unknown.　Thus,　in　this　study,　the　distribution,　convection　and　microbial　response　of　two　typical　EDCs,　bisphenol　A　(BPA)　and　nonylphenol　(NP),　in　submerged　(SS)　and　temporarily　flooded　sediment　(FS)　of　LRZ　were　investigated　by　in-situ　diffusive　gradients　in　thin　films　technology.　Concentrations　of　BPA　(11.07　+/-　2.49　mu　g/kg)　and　NP　(20.42　+/-　8.23　mu　g/kg)　in　FS　significantly　fluctuated　with　depth,　conversely,　their　concentrations　in　SS　increased　steadily　with　depth　(BPA:　14.01　74.76　mu　g/kg;　NP:　14.14　137.01　mu　g/kg).　BPA　and　NP　dynamics　analysis　based　on　the　DIFS　(DGT-induced　fluxes　in　sediments)　model　and　fugacity　fraction　showed　the　water-sediment　exchange　capacity　of　BPA　and　NP　in　SS　was　on　average　2-3　times　higher　than　in　FS.　Some　bacterial　genera　involved　in　nitrogen　metabolism　can　effectively　transform　BPA　and　NP,　such　as　Pseudomonas,　Novosphingobium,　and　Sphingomonas,　which　are　more　active　in　oxygenic　FS　than　in　hypoxic　SS.　Considering　this　evidence　as　well　as　an　increasing　EDCs　pollution,　the　behavior　and　quantification　of　EDCs　at　the　water-sediment　interface　of　the　LRZ　merits　a　further　investigation.