ABSTRACT
Atmospheric pollution from fossil fuel combustion has increased dramatically over the last century. The ubiquity of particulate contamination worldwide has, however, created apowerful new tool for nuclear forensic analysis-Pb isotope pro–ling (or “–ngerprinting”). Lead alkyls, added to gasoline for their antiknock properties, are emitted as micrometer-sized particulates from automobile exhaust and, as the major source of atmospheric Pb, are a well-recognized imprint of modern society on the Earth’s ecosystem [1].
