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PCD’s latest tests find arsenic still above standard in Kok, Sai, Mekong rivers
FRIDAY, MARCH 20, 2026
PCD’s 16th round of monitoring found arsenic above the 0.01 mg/L limit at several points in the Kok, Sai and Mekong rivers, while all sampling points on the Ruak River met the standard.
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.
Karenni warns against Salween water as Thai border risks resurface
THURSDAY, FEBRUARY 26, 2026
Karenni authorities say tests found arsenic above the WHO drinking-water guideline in the Salween River and Molo Creek, prompting fresh concerns for communities along the Thai–Myanmar border.
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.
Suchart confirms government will not raise arsenic standard to 0.05 mg/L
SATURDAY, NOVEMBER 15, 2025
Deputy Prime Minister Suchart Chomklin confirmed that the government will not raise the arsenic standard from 0.01 mg/L to 0.05 mg/L. The government is also committed to introducing stricter environmental standards to protect the public.
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.
Thailand raises river pollution and call centre gangs at RBC meeting
THURSDAY, JULY 03, 2025
Thailand raised the issues of toxic contamination in the Kok and Sai rivers, as well as transnational call centre gangs, during the 37th Thai-Myanmar Regional Border Committee (RBC) meeting in Chiang Mai on Thursday.
Pollution Control Department warns agencies to check arsenic levels in sediment from Chiang Rai rivers
SUNDAY, JUNE 29, 2025
Pollution Control Department urges arsenic checks on river sediment in Chiang Rai amid fears of contamination from Myanmar mining.