Arsenic Levels in Kok-Sai and Ruak-Khong River Basins Pose Severe Threat to Aquatic Life
Chiang rai: Arsenic levels in sediment have exceeded safety standards in the Kok-Sai and Ruak-Khong river basins, reaching critically high levels. According to Thai News Agency, the Pollution Control Department (PCD) has conducted its 12th sediment te…