The level of total petroleum hydrocarbon (TPH), a component found in crude oil, has sharply decreased at Koh Samet's Ao Phrao but still exceeds safety standards, the Department of Pollution Control says.
An activist with his face painted black holds oil-stained shells at Government House on Aug 27. He and other activists asked Prime Minister Yingluck Shinawatra for an independent investigation into the July 27 oil spill off Rayong province. Photo by Chanat Katanyu
Department chief Wichien Jungrungruang said yesterday the latest lab tests on sea water samples collected from 12 of Koh Samet's beaches this month showed that levels of cadmium, mercury and arsenic, as well as Polycyclic Aromatic Hydrocarbons (PAHs), were in line with safety standards. But TPH is still above safety guidelines of one microgram per litre (mg/l), he said.
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