 It said there was a considerable risk that fragmented plastics would not fully biodegrade, leading to subsequent risk of an accelerated and accumulating amount of microplastics, especially in the marine environment.Rapid fragmentation was found to increase the risk of microplastic ingestion by marine animals.In relation to littering, the report found that, although it appeared the oxo-degradable plastics industry could create products with minimal toxic impact on flora and fauna, it had not been conclusively proven that there were no negative effects.