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Solutions and Applications


Atmospheric Health Effect Framework Model

ICF developed and maintains the Atmospheric Health Effect Framework (AHEF) Model for the U.S. Environmental Protection Agency (EPA). The AHEF Model is an internationally recognized tool to estimate ultraviolet (UV) induced health effects that may result from stratospheric ozone depletion.

The AHEF combines satellite ozone measurements with projected emissions of ozone depleting substances (ODS) to estimate future ozone concentrations and associated changes in UV and health effects (i.e., melanoma and non-melanoma incidence and mortality and cataract incidence). The AHEF is used to estimate the change in health effects resulting from various ODS policy scenarios, to perform sensitivity analyses, and to compare and evaluate results generated by similar models. ICF has used the AHEF to examine the public health impacts as well as atmospheric impacts of aviation, methyl bromide use, National Ambient Air Quality Standards (NAAQS), and halon decommissioning strategies.