visible contamination prior to pulverisation in an agate mill. The resulting sample powder was subjected...concinna Haliotis Atlantic ocean, Dyer Island, South Africa Gulf of Mexico, USA Mediterranean, HydrarGreece...Torredembarra, Costa Dorada, Spain Gulf of Mexico, USA Firth of Lorn, Scottland Bristol channel, Swansea...Mediterranean South China Sea, Pulan Tioman, Tioman Island, Malaysia Bristol channel, Swansea, England Mediterranean...Veulles les Roses, Normandy, France Signy Island, Antarctic Dyer Island, South Africa 8 surface surface surface |