Greenpeace radiation experts Stan Vincent and Jan Vande Putte survey the Mayapuri scrap market where exposure to radioactive material (Cobalt-60) in the previous month claimed one life and caused injuries to many more. They join a team of Greenpeace activists marking off the contaminated area. Radiation from a Cobalt 60 source (a radioactive isotope of cobalt) killed one person and injured six persons in this western Delhi metal scrap market. The Cobalt-60 originated from a Gamma Irradiator which the Delhi University auctioned to a scrap dealer. The International Atomic Energy Agency has termed it as a Level 4 accident.