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Health Ministry reassures on Kok River safety as arsenic tests meet standards
THURSDAY, FEBRUARY 26, 2026
Health Ministry confirms Kok River remains safe but calls for ongoing surveillance of water supply, food contamination, and health checks for at-risk groups.
Pollution Alert for 'Kok River' and 'Sai River' – Arsenic Levels Exceed Standards, Avoid Direct Use
SATURDAY, FEBRUARY 14, 2026
Pollution Control Dept. warns of arsenic levels exceeding standards in Kok and Sai Rivers. Avoid using water directly from these sources. Clean water systems recommended for safety.
Chinese state firm expanding rare earth mines near Thai border, SHRF warns
WEDNESDAY, OCTOBER 29, 2025
The Shan Human Rights Foundation reports Chinese state firm expanding rare earth and gold mining along Myanmar’s Kok River, raising cross-border pollution fears.
Toxic pollution in Kok River causes 1.3 billion baht annual economic losses
TUESDAY, SEPTEMBER 23, 2025
Kok River pollution from mining and waste causes up to 1.3 billion baht in annual losses, hitting farming, fishing and tourism in northern Thailand.
Heavy rains from Wipha remnants dilute arsenic pollution in northern rivers: PCD
SUNDAY, SEPTEMBER 07, 2025
PCD reports arsenic levels in Kok and Mekong rivers dropped after Wipha rains, but Sai River remains heavily contaminated from Myanmar rare earth mining.
Thailand, Myanmar to join hands to resolve border rivers’ arsenic contamination
WEDNESDAY, AUGUST 20, 2025
Thailand and Myanmar agree to form a joint panel to tackle arsenic contamination in the Kok and Sai rivers, aiming for sustainable environmental solutions.
Two Chiang Mai children found with high arsenic levels linked to river fish consumption
TUESDAY, JULY 08, 2025
Two children in Mae Ai district, Chiang Mai, were found to have unusually high levels of arsenic in their bodies. The children, aged 2 and 6, were regular consumers of fish from the Kok River, which flows from Shan State, Myanmar, into Thailand.
Arsenic contamination detected at 11 sites in Kok River, PCD warns
SUNDAY, JUNE 01, 2025
The third round of water quality tests in the Kok River has revealed arsenic levels exceeding standards at 11 locations, particularly near the Myanmar border, the Pollution Control Department (PCD) reported on Sunday.
Thai govt fast-tracks cleanup of Kok River arsenic contamination affecting Chiang Mai and Chiang Rai
FRIDAY, MAY 23, 2025
The Thai government is urgently addressing the contamination crisis in the Kok River, which has affected residents in Chiang Mai and Chiang Rai provinces since March 2025.
Public Health Ministry warns of arsenic and lead contamination in Chiang Rai rivers
WEDNESDAY, MAY 21, 2025
Public Health Ministry warns of arsenic and lead contamination in Chiang Rai rivers; locals urged to avoid eating freshwater fish for safety.