Global share of wastewater safely treated 2022, by region

Published by
Erick Burgueño Salas,
May 17, 2023
Globally, 42.2 percent of wastewater flow generated by households was not safely treated in 2022. There are considerable regional disparities for wastewater treatment worldwide. 86.5 percent of household wastewater flow is treated safely in North America and Europe, but less than 25 percent is treated safely in Sub-Saharan Africa and Central and Southern Asia.

Proportion of domestic wastewater flow safely treated worldwide in 2022, by region*

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Release date

2023

Region

Worldwide

Survey time period

2022

Supplementary notes

*treated by secondary or higher processes or with effluent discharges meeting relevant standards.

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