ACTIVITY REPORT ACTIVITY REPORT ACTIVITY REPORT ACTIVITY REPORT No. 4 7 No. 4 7 No. 4 7 No. 4 7 Options for Monitoring Biological and Environmental Lead During the Phase-out of Lead in Gasoline in Latin America & the Caribbean September 1999 by Janie L. Gittleman Patricia Billig Steven K. Ault and Mauricio Hernández-Avila Prepared for the Office of Health and Nutrition, Global Bureau and the Environment Team, Office of Regional Sustainable Development, Bureau for Latin America and the Caribbean U.S. Agency for International Development under EHP Activity No. 250-CC