A boy plays in a pool of polluted water near the sea on a beach next to the main port in Haina February 28, 2009. Researchers will fan out across more than 80 developing countries beginning this month to hunt out and assess many of the world's dirtiest industrial waste sites. The New York-based nonprofit Blacksmith Institute recently led a $200,000 clean up of a battery site in Haina in the Dominican Republic, in which much of the underlying soil was 35 percent lead, a pollutant that leads to severe learning disabilities in children. REUTERS/Eduardo Munoz (DOMINICAN REPUBLIC)
REUTERS/EDUARDO MUNOZ