Public Health Assessment for Franklin Elementary School, Phoenix, MaricopaCounty, Arizona

摘要

The objective of this health assessment is to provide an evaluation of currentand future potential health risks that may result from exposure to residual organochlorine pesticides at Franklin Elementary School in Phoenix, Arizona. The school has been unoccupied for the past 10 years. The historic school building is being restored by the school district, which plans to reopen the building for use as an elementary school for approximately 365 children. Several organiochlorine pesticides were discovered in the soil during routine environmental sampling done in conjunction with the renovation. In particular, chlordane and dieldrin, banned by the U.S. Environmental Protection Agency (EPA) for use in the United States in the early 1980's, were present in concentrations above screening levels. Environmental data indicate that soil concentrations as high as 2,270 milligrams per kilogram (mg/kg) of chlordane and 0.71 mg/kg of dieldrin remain on the property. The maximum indoor air concentration of chlordane at the site was 0.00099 milligrams per cubic meter (mg/m(sup 3)). No pesticides were detected in outdoor air samples. This report evaluates the potential environmental pathways of human exposure to the contaminated media. These contaminants of concern are further evaluated to determine the level of human health effects that may result from exposure. Particular consideration is given to child health issues and community concerns in the health assessment.