Achievement rate for water quality standards of sea areas in Japan FY 2012-2021
In the fiscal year 2021, the achievement rate for water quality standards of sea areas in Japan amounted to around 78.6 percent. Figures hit a decade-low in 2013, reaching only 77.3 percent. The overall water quality standard, including rivers, lakes, and sea areas, amounted to close to 88.3 percent in that fiscal year.