Rapid Drop in Infant Blood Lead Levels during the Transition to Unleaded Gasoline Use in Santiago, Chile

  title={Rapid Drop in Infant Blood Lead Levels during the Transition to Unleaded Gasoline Use in Santiago, Chile},
  author={Paulina Pino and Tom{\'a}s Walter and Manuel Oyarz{\'u}n and Matthew J. Burden and Betsy Lozoff},
  journal={Archives of Environmental Health: An International Journal},
  pages={182 - 187}
  • P. PinoT. Walter B. Lozoff
  • Published 1 April 2004
  • Medicine
  • Archives of Environmental Health: An International Journal
This study was conducted to relate blood lead levels in infants to changes in lead emissions in Santiago, Chile, a heavily polluted setting where leaded gasoline began to be replaced with unleaded gasoline in 1993. Over an 18-mo period, 422 infants had blood lead levels, cotinine, and iron status determined at 12 mo. Blood lead levels fell at an average rate of 0.5 μ/dl every 2 mo, from 8.3 to 5.9 μ/dl, as the city experienced a net fall of 30% in the quantity of leaded gasoline sold. Time… 

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