Port Pirie lead abatement Program, 1992.

The Port Pirie Lead Decontamination Program commenced in 1984 with a ten year mandate. The abatement programme involves identification of children with elevated blood lead levels, house decontamination, soil treatment, general City greening, family education and support and community education. Since 1984 the smelter has also implemented substantial new environmental controls.Blood lead and air monitoring programmes as well as some investigations of recontamination are in place. The blood lead monitoring programme has shown a significant decrease in the mean blood lead levels of the children, with the magnitude of the reduction being greatest in areas remote from the smelter.The results of the air monitoring programme suggest that there has been little change in the general air lead levels in the City over the period of the abatement programme. Analysis of the data suggests that re-entrainment of lead from the contaminated areas within the City is only a small contributor to air-borne lead levels compared with that from the smelter and its environs.Sources and pathways of lead for absorption by the children in Port Pirie are discussed.