Commonwealth of Independent States. NAFTA: North American Free Trade Agreement.
* Correlation between wastewater treatment plants and gross domestic product per capita.
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Global share of population with wastewater collection systems by region 2018
This statistic displays the share of population connected to wastewater collection systems worldwide as of 2018, broken down by region. As of that year, roughly ** percent of the population in China was connected to a wastewater collection system.
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UNEP, & GEF, & Danmarks Tekniske Universitet. (October 23, 2018). Share of population connected to wastewater collection systems worldwide as of 2018, by region [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/1016760/population-connected-to-wastewater-collection-system-globally-by-region/
UNEP, und GEF, und Danmarks Tekniske Universitet. "Share of population connected to wastewater collection systems worldwide as of 2018, by region ." Chart. October 23, 2018. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/1016760/population-connected-to-wastewater-collection-system-globally-by-region/
UNEP, GEF, Danmarks Tekniske Universitet. (2018). Share of population connected to wastewater collection systems worldwide as of 2018, by region . ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/1016760/population-connected-to-wastewater-collection-system-globally-by-region/
UNEP, and GEF, and Danmarks Tekniske Universitet. "Share of Population Connected to Wastewater Collection Systems Worldwide as of 2018, by Region ." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 23 Oct 2018, /statistics/1016760/population-connected-to-wastewater-collection-system-globally-by-region/
UNEP & GEF & Danmarks Tekniske Universitet, Share of population connected to wastewater collection systems worldwide as of 2018, by region ÌÇÐÄÆƽâ°æ, /statistics/1016760/population-connected-to-wastewater-collection-system-globally-by-region/ (last visited July 29, 2026)
Share of population connected to wastewater collection systems worldwide as of 2018, by region [Graph], UNEP, & GEF, & Danmarks Tekniske Universitet, October 23, 2018. [Online]. Available: /statistics/1016760/population-connected-to-wastewater-collection-system-globally-by-region/
