Department of Environmental Systems Science, ETH Zurich, Swiss Federal Institute of Technology, Zurich, Switzerland.
Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
Science. 2024 Aug 16;385(6710):784-790. doi: 10.1126/science.adh9578. Epub 2024 Aug 15.
Safe drinking water access is a human right, but data on safely managed drinking water services (SMDWS) is lacking for more than half of the global population. We estimate SMDWS use in 135 low- and middle-income countries (LMICs) at subnational levels with a geospatial modeling approach, combining existing household survey data with available global geospatial datasets. We estimate that only one in three people used SMDWS in LMICs in 2020 and identified fecal contamination as the primary limiting factor affecting almost half of the population of LMICs. Our results are relevant for raising awareness about the challenges and limitations of current global monitoring approaches and demonstrating how globally available geospatial data can be leveraged to fill data gaps and identify priority areas in LMICs.
安全饮用水的获取是一项人权，但全球超过一半的人口缺乏关于安全管理饮用水服务（SMDWS）的数据。我们采用地理空间建模方法，结合现有的家庭调查数据和可用的全球地理空间数据集，对 135 个中低收入国家（LMICs）的 SMDWS 使用情况进行了省级估计。我们估计，2020 年仅有三分之一的 LMICs 人口使用了 SMDWS，并发现粪便污染是影响近一半 LMICs 人口的主要限制因素。我们的研究结果有助于提高对当前全球监测方法的挑战和局限性的认识，并展示如何利用全球可用的地理空间数据来填补数据空白并确定 LMICs 的优先领域。
