Share of population with access to drinkable tap water Japan FY 1950-2022

In the fiscal year 2022, 98.3 percent of the population in Japan had access to drinkable tap water from water services, following a slow but steady increase in the 2010s. Most of the tap water was supplied using waterworks, while a smaller amount was supplied with small-scale water supply systems as well as private water supply systems.Wastewater treatment in JapanWater pollution has become an environmental issues worldwide. Marine pollution is mainly caused by oil and waste, such as disposable plastic products. Therefore, wastewater treatment is essential to supply safe and drinkable water. The Japanese government strictly regulates tap water under the Water Supply Act enacted in 1957. In recent years, the share of population served by wastewater treatment systems increased to over 92 percent. The majority of citizens were served by sewage lines. Water consumption in JapanIn recent years, the average daily water consumption volume per person in Japan stood at around 281 liters. The Kanto region had the largest demand for water, likely because the metropolitan area of Tokyo is densely populated and represents one of the main industrial centers on the archipelago.

在2022财年，日本98.3%的人口能够通过水供应服务获取可饮用的自来水，这一比例在2010年代经历了缓慢而稳定的增长。大部分自来水由水厂供应，同时还有一部分通过小型供水系统以及私人供水系统提供。随着全球范围内水污染问题的日益严重，尤其是海洋污染主要由石油和废弃物，如一次性塑料产品造成，污水处理对于提供安全可饮用的水资源变得至关重要。日本政府自1957年实施的《供水法》以来，对自来水实施了严格的监管。近年来，通过污水处理系统服务的人口比例已增至超过92%，其中大多数市民由下水道服务提供。近年来，日本每人平均每日用水量约为281升。关东地区对水的需求量最大，这可能是由于东京都市区人口密集，同时也是该群岛的主要工业中心之一。