ABSTRACT
The impact of a chemical release is dependent not only on the toxicity of the compound but also on the likelihood that we will ingest or inhale the toxin. The tendency of a chemical to dissolve in a liquid solvent e.g., water, to form a homogeneous solution is its solubility. This chapter presents the development of a chemical-specific mobility factor (MF) or a factor that represents the tendency of a chemical to dissolve in water and evaporate into air based on the solubility of the chemical in milligrams per liter and VP in atmospheres. The VP in atmospheres of the Toxics Release Inventory (TRI) chemicals was obtained from the Pennsylvania Department of Environmental Protection. The solubility in milligrams per liter of the TRI chemicals was obtained from the Risk-Screening Environmental Indicators (RSEI)Database of the US Environmental Protection Agency USEPA. The chemical-specific combined MF was derived by averaging the respective chemical-specific air and water MFs.
