This statistic displays the share of untreated wastewater globally in 2015 and 2030, with a breakdown by country income level. It is predicted that some ** percent of the low-income countries' wastewater will remain untreated in 2030.
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UNESCO, & UN-Water. (March 22, 2017). Share of untreated wastewater in 2015 and 2030 globally, by country income level [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/712729/share-of-untreated-wastewater-by-country-income-level/
UNESCO, und UN-Water. "Share of untreated wastewater in 2015 and 2030 globally, by country income level ." Chart. March 22, 2017. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/712729/share-of-untreated-wastewater-by-country-income-level/
UNESCO, UN-Water. (2017). Share of untreated wastewater in 2015 and 2030 globally, by country income level . ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/712729/share-of-untreated-wastewater-by-country-income-level/
UNESCO, and UN-Water. "Share of Untreated Wastewater in 2015 and 2030 Globally, by Country Income Level ." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Mar 2017, /statistics/712729/share-of-untreated-wastewater-by-country-income-level/
UNESCO & UN-Water, Share of untreated wastewater in 2015 and 2030 globally, by country income level ÌÇÐÄÆƽâ°æ, /statistics/712729/share-of-untreated-wastewater-by-country-income-level/ (last visited July 31, 2026)
Share of untreated wastewater in 2015 and 2030 globally, by country income level [Graph], UNESCO, & UN-Water, March 22, 2017. [Online]. Available: /statistics/712729/share-of-untreated-wastewater-by-country-income-level/
