Thailand Pollution Control Department Corrects Water Quality Data Following Fish Deaths in Prachinburi

Key summary

The Pollution Control Department (PCD) of Thailand's Ministry of Natural Resources and Environment has issued a correction regarding water quality analysis results for fish deaths in the Sri Mahaphot district, Prachinburi province. The department acknowledged previous errors in reporting ammonia and aluminum concentration levels. Corrected data from samples collected on October 12 and 16, 2026, show dissolved oxygen levels between 2.5-7.5 mg/L, ammonia concentrations of 0.22-0.48 mg/L, and aluminum levels of 0.559-3.547 mg/L. The PCD plans to collect sediment samples from the Prachinburi River and its tributaries after flood conditions normalize to investigate pollution sources and their potential link to the fish deaths.