Report Arsenic Contamination in Kok River Triggers Urgent Testing in Chiang Mai

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Picture courtesy of ThaiPost

 

Authorities in Chiang Mai are conducting extensive testing of aquatic animals and agricultural produce due to arsenic contamination in the Kok River. In response to the pollution issues that emerged on March 19, police have issued warnings against using river water for daily consumption and food preparation.

 

Deputy Governor Siwako Buaphong participated in an online meeting with the Senate Committee on Natural Resources and Environment on April 29 at Chiang Mai Provincial Hall to address the ongoing crisis. Multiple government agencies are involved in assessing water quality at three critical sites: the Thai-Myanmar border, the Friendship Bridge, and Pa Tai village. Results reveal worsening water quality, with heavy metals and toxins exceeding safety standards.

 

Efforts are being directed to trace the pollution sources and mitigate the impact on riverbank communities, especially in the Tha Ton and Na Wang subdistricts. Local health volunteers, alongside government bodies, are actively advising residents, entrepreneurs, and farmers to avoid contact with the river water for consumption and agricultural use. The Chiang Mai Provincial Disaster Prevention and Mitigation Office has stepped in to supply potable water to affected areas.

 

 

 

Deputy Governor Siwako expressed concerns about the contamination's impact on fisheries, livestock, and agriculture in Mae Ai district. Fortunately, most residents rely on mountain water, reducing the contamination's effect. However, the tourism sector along the river faces more pressing safety concerns.

 

Contamination remains high, as per sediment samples collected on April 24 in Mae Ai district. In response, Siwako has directed the Chiang Mai Fisheries and Agriculture offices to re-test aquatic and agricultural resources for toxic substances, including arsenic, mercury, lead, and cadmium.

 

To safeguard public health, officials are reinforcing advisories against using contaminated water for cooking and consumption, urging strict adherence to safety guidelines among local communities. The situation underscores the need for rapid response and thorough investigation to protect the well-being of affected residents and the sustainability of the region's natural resources.

 

  Adapted by ASEAN Now from The Thaiger 2025-04-30