UPDATE The smelly, murky water putting off tourists from swimming in the sea at Maenam Beach in Koh Samui , southern Thailand , is not an oil spill but caused by a plankton bloom , which is a natural phenomenon, according to the Director of Koh Samui Harbour Authority, Arun Buppako. The photos circulating of green murky water at the beach show dead plankton floating on the surface of the water, said the director. Officials inspected the area and found no oil spills, he added. According to NaewNa , the director said… “Plankton blooms are a natural phenomena that happen every year. One main contributing factor is that when wastewater from the community is released into the sea, it acts as nutrients for plankton, causing them to multiply quickly. When the oxygen in the water depletes, the plankton dies, turning the seawater green. Related news Three mpox cases found in Thailand 4 hours ago Strikes in Germany force Thai Airways to … [Read more...] about Murky water at Koh Samui beach caused by plankton bloom, not oil spill: officials