Air Superfund National Technical Guidance Study Series. Estimation of Air Impactsfor the Excavation of Contaminated Soil

摘要

Analysis of the air impacts associated with cleaning up Superfund sites isfrequently required prior to actual cleanup. Such analyses depend on estimates rather than on field measurements. This report provides procedures for estimating the emissions of volatile organic compounds (VOC) and the ambient air concentrations associated with the excavation of contaminated soil. Excavation is an integral part of any Superfund site remediation that involves removal or ex-situ treatment such as incineration, thermal desorption, bioremediation, or solidification/stabilization. The report contains procedures to evaluate the effect of the concentration of the contaminants in the soil and the excavation rate on the emission rates and on the ambient air concentrations at selected distances from the excavation site. Health-based ambient air action levels are also provided for comparison to the estimated ambient concentrations.