Ionic alkyllead compounds in environmental water and sediments

To elucidate the occurrence and fate of ionic alkyllead species in environmental water and sediments, a procedure, based on the existing methodology for speciation of lead in the biosphere, has been optimized. It allows species-specific detection of the degradation products of tetraalkyllead at levels down to 150 pg · L^-1 in water or 25 pg · g^-1 in sediment.Results of a survey on lake, river and sea water and the corresponding sediments are presented; the possible correlations are outlined and discussed.