Severe Arsenic Contamination Detected in Sai River Basin
Researchers report arsenic levels in the Sai River reaching up to 40 times the safety standard, linked to mining activities in Shan State.
According to a report by Prachachat Business, researchers from Chiang Mai University and the CMU River Watch network have identified a critical cross-border pollution crisis affecting the Sai and Kok river basins. Monitoring data indicates that concentrations of arsenic and other heavy metals in the Sai River have surged, with estimates suggesting levels are now 30 to 40 times higher than established safety standards. Experts attribute this environmental degradation to the rapid expansion of gold and rare earth mining operations in the forests of Myanmar's Shan State, where approximately 3,000 mining sites have reportedly emerged. For residents and travellers in the region, this contamination poses significant environmental and health concerns regarding water quality and local ecosystems. While the data highlights a severe trend, the long-term impact on downstream water safety and the specific timeline for potential mitigation efforts remain to be confirmed. Authorities and environmental groups continue to monitor the situation as the pollution flows across the border, emphasizing the need for regional cooperation to address the source of the heavy metal discharge.
