Dataset replaced by: http://data.europa.eu/euodp/data/dataset/yTmuubIOQ0IwQAPNEhshEQ
This indicator is defined as the percentage of the population connected to waste water treatment systems with at least secondary treatment. Thereby, urban waste water is treated by a process generally involving biological treatment with a secondary settlement or other process, resulting in a biochemical oxygen demand (BOD) removal of at least 70% and a chemical oxygen demand (COD) removal of at least 75%.
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