PROBLEM TO BE SOLVED: To provide an environment cleaning agent which can efficiently perform adsorption and decomposition of and is configured not to easily become saturated with environmental load substances such as dioxin and the like, and which thereby continually performs environment cleaning.SOLUTION: Provided is an environment cleaning agent comprising nanofibers such as cellulose nanofibers, chitin nanofibers or chitosan nanofibers and the like impregnated with filamentous fungi which are used in production of food products. The nanofibers are chitin nanofibers or chitosan nanofibers 1 fibrillated and opened by a high-pressure injection treatment 4. The filamentous fungi which are used in production of food products are Aspergillus oryzae 2.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT【課題】ダイオキシン等の環境負荷物質に対して吸着・分解を効率的に行なうことができ、飽和状態になり難くして持続的に環境浄化を行なう環境浄化剤の提供。【解決手段】セルロースナノファイバーやキチンナノファイバー又はキトサンナノファイバー等のナノファイバーに食品の製造に用いられる糸状菌を含浸させた環境浄化剤。ナノファイバーは、高圧噴射処理4により解繊・開繊されたキチンナノファイバーまたはキトサンナノファイバー1であり、食品の製造に用いられる糸状菌は、麹菌2である環境浄化剤。【選択図】図5