Nanomaterials describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 to 1000 nanometres (10−9 meter) but usually is 1 to 100 nm (the usual definition of nanoscale).
Wastewater treatment plants (WWTPs) must handle large amounts of data from different sources and of varied quality, making it difficult for operators to identify the plant's status. An EU initiative addressed this problem by enabling all available data to be successfully managed.