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Wastewater - generation and discharge

<p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>This dataset shows generation, treatment and discharges of wastewater, by source and in terms of volumes and of Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD).</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>&nbsp;</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>UN-Habitat, WHO, and UNSD are co-custodians for SDG Indicator 6.3.1. &nbsp; The Eurostat/OECD Joint Questionnaire on Inland Waters serves as an important data source for the indicator. &nbsp;Progress reports are published every three years and global, regional, and country estimates are updated routinely. &nbsp;Progress reports, a data portal, methodological details, and country files can be found on the SDG Indicator 6.3.1 website.</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>&nbsp;&nbsp;</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'><strong>Data source(s)</strong>: Joint OECD/Eurostat questionnaire on Inland Waters. Data for non-OECD countries is sourced from UNSD (Country Files from the UNSD/UNEP data collection on environment statistics (available at: <a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Funstats.un.org%2Funsd%2Fenvstats%2Fcountry_files&data=05%7C02%7CMauro.MIGOTTO%40oecd.org%7C7ea6f3f805c54ac71c0c08dd7781736f%7Cac41c7d41f61460db0f4fc925a2b471c%7C0%7C0%7C638798120182570804%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=E%2FXVio6Cf2tDv%2BRanuzY26iQlBGt4T6OqmiKPZ5%2F1Xg%3D&reserved=0">https://unstats.un.org/unsd/envstats/country_files</a>))</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>&nbsp;</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'><strong>Contact</strong>: <a href="mailto:ENV.Stat@oecd.org">ENV.Stat@oecd.org</a></p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>&nbsp;</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'><strong>Dataset release date</strong>: August 7, 2026</p> <p style='margin-top:0cm;margin-right:0cm;margin-bottom:8.0pt;margin-left:0cm;line-height:115%;font-size:16px;font-family:"Aptos",sans-serif;'>&nbsp;</p> <p><span style='font-size:16px;line-height:115%;font-family:"Aptos",sans-serif;'><a href="https://webfs-env.oecd.org/files/Generation%20and%20discharge%20of%20wastewater%2C%20Country%20metadata.pdf">Country metadata - M&eacute;tadonn&eacute;es pays</a></span></p>