The United Nations world water development report, 2017
The United Nations World Water Development Report 2023
50 per cent of wastewater is now treated globally
Half of Global Wastewater Is Now Treated, but Developing Countries
World Water Development Report 2022 by Christina Dian Parmionova
50 per cent of wastewater is now treated globally
UN: 500 million live in 19 African nations deemed water insecure
Press Release – UNU-INWEH
Blog – Page 7 – UNU-INWEH
Sustainability, Free Full-Text
Half of global wastewater treated, rates in developing countries
Wastewater production, collection, treatment, and reuse status by