Lead from gasoline discovered in Indian Ocean

Lead from gasoline discovered in Indian Ocean

Wed June 27th, 2012
Jennifer Chu, MIT News Office

Corals grow annual density bands that can be counted like tree rings. Researchers have measured lead in coral samples shown, and traced the history of lead deposition in the Indian Ocean - Photo: Intan Nurhati  Professor of ocean geochemistry Ed Boyle, has been tracking lead and other trace elements in Earth’s oceans for the past 30 years. Most recently, Boyle's Trace Metal Group have analyzed water and coral samples from the Indian Ocean, using the coral to trace the history of anthropogenic lead over the last 50 years. 

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