PRACHIN BURI: -- Toxicity tests conducted by three departments under three different ministries all showed high mercury accumulation in fish in water resources near an industrial estate in Prachin Buri province.
The source of the mercury contamination has, however, not yet been established, said Chumphol Chawapraphanant, a deputy director-general of the Department of Industrial Works, the fourth agency taking part in the investigation.
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