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"Fly ash produced by the Marsa power station when it was still coal-fired, which was dumped on the cliff-edge in Bengħaisa, contained high levels of radioactivity, according to a University study. The pulverised fuel ash had "very high levels of all the radionuclides (radioactive contaminants) under test, namely K40, PB212 and PB214", the research found. The three elements are derivatives of potassium and lead. Winds and rain occasionally spill the fly ash, which was covered with soil off the cliff-edge and into the sea below. The mound is situated at the back of the Freeport on the south eastern cliff face that borders Ħal Far industrial estate. Scientific tests on the mound of fly ash were conducted five years ago by Josette Camilleri and Franco Montesin from the University's Faculty of Architecture and Civil Engineering and Michael Sammut from the hospital's Pathology Department. The study was published in the American journal Waste Management. "I was surprised by the reaction when it was recently revealed that fly ash from the power stations was dumped in a quarry, because everybody seems to have forgotten that radioactive fly ash produced when coal was burned at Marsa was dumped in a disused quarry at Bengħisa," Dr Camilleri said."