Sludge Pollution in Fuji City and Its Impact on the Fishing Industry (1950s–1970s) – September 1995

Sludge Pollution in Fuji City and Its Impact on the Fishing Industry (1950s–1970s) – September 1995 In Fuji City, Shizuoka Prefecture, rivers were polluted by wastewater from paper mills, resulting in the accumulation of large amounts of sludge. This pollution worsened during the period of rapid economic growth beginning in the 1950s, as the paper industry expanded rapidly. Harmful substances contained in the wastewater flowed into the rivers, causing a decline in fishery resources and dealing a severe blow to those engaged in the fishing industry. An estimated 10,000 tons of sludge accumulated in the Fuji River, resulting in annual fishing industry losses of approximately 50 million yen. More than 10,000 people participated in resident-led campaigns, and a petition drive collected about 30,000 signatures. Starting in 1975, the introduction of activated sludge and coagulation-sedimentation processes led to a reduction in harmful substances in the wastewater. Furthermore, stricter regulations imposed by the Environmental Agency, established in 1971, bolstered pollution contr ol efforts. This case demonstrates the importance of balancing environmental conservation with industrial development.