These extremely small indicators, he explains, have been traditionally difficult to detect but can signal greater levels of contamination, which can lead to illness and even death. (sciencedaily.com)
Two thirds of the island now have extreme levels of contamination which have been related to disproportionately high cancer rates among the 9,000 residents. (oilprice.com)
A 2014 study involving Museum researcher Dr Lucy Woodall found high levels of contamination in deep - sea sediments. (nhm.ac.uk)