The results of the second test of contaminated seawater around Koh Samet caused by the oil spill have shown that the level of the Total Petroleum Hydrocarbon (TPH) is 200 times over the accepted standard, an informed source said Friday.
Mercury levels remain high and the contamination has spread to other parts of the island.
According to the source, the Pollution Control Department collected seawater samples on August 8 to study the level of contamination by hazardous substances caused by the oil spill.