Health
High Arsenic Levels Detected in Salween River Basin
The Pollution Control Department reports dangerous arsenic levels in the Salween River, impacting local aquatic ecosystems.
According to a report from Thai Post, the Pollution Control Department (PCD) has released findings from water and sediment quality tests conducted in the Salween River during the rainy season in August 2026. The data indicates that arsenic concentrations remain at levels considered severely hazardous to benthic organisms—the aquatic life living on the river floor.
Furthermore, the investigation extended to several tributaries, including the Yuam, Pai, and Mae Sam Laep rivers. Testing in these areas revealed that certain heavy metals have exceeded established safety standards.
For residents and travelers in these regions, these findings highlight potential environmental health concerns regarding water quality and the safety of local aquatic life. While the report focuses on the impact on benthic organisms, the presence of heavy metals in river systems often necessitates caution regarding water usage and the consumption of local aquatic products.
It remains to be confirmed how these contamination levels fluctuate across different seasons and what specific long-term mitigation strategies the authorities will implement to address the pollution in these waterways. Residents and visitors are advised to monitor official updates from the Pollution Control Department for further guidance on water safety in the affected areas.