Author:John, J; Oosthuizen, R; Webb, E; Voyi, K; Ijsselmuiden, CDate:Mar 2004The authors characterized the exposure of 5-year-old pre-school children, in two areas of Pretoria, to lead in air and surface soil. The study was conducted at 30 pre-schools in Soshanguve and 24 in Pretoria East during July 2001. Exposure ...Read more