Pathum Thani Officials Deploy EM Balls to Combat Canal Water Pollution
Local authorities in Pathum Thani are using EM balls and aeration equipment to address foul-smelling, black water in an irrigation canal caused by flood drainage.
On October 8, 2026, officials in Pathum Thani initiated efforts to improve water quality in a local irrigation canal. According to Khaosod English, the water has turned black and emitted a strong, unpleasant odor following recent floodwater drainage activities.
Dr. Wirasak Hadda, president of the Khlong Sam Subdistrict Administrative Organisation (SAO), is leading the intervention. The strategy involves the deployment of Effective Microorganism (EM) balls—a mixture of beneficial bacteria used to break down organic pollutants—alongside the installation of aeration machines to increase oxygen levels in the water.
For residents and travelers in the Pathum Thani area, this situation is primarily an environmental and aesthetic concern. The foul odor may be noticeable near affected waterways, and authorities are working to mitigate the impact of the stagnant, polluted water.
While these measures are currently underway, it remains to be confirmed how long the treatment process will take to restore the canal to its normal state and whether further interventions will be required if water quality does not improve. Residents are advised to monitor local announcements from the Khlong Sam SAO for updates regarding the canal's condition and any potential health or safety advisories related to the water quality.
