Instantaneous Point Exposure 1
Instantaneous Point Exposure 1 : Contact between an agent and a target at a single point on a contact boundary at a single instant in time; the joint occurrence of two events: (1) point i of the target is located at (xi,yi, zi), and (2) an agent of concentration Ci, the exposure concentration, is present at location (xi,yi,zi); measured as a concentration [Zartarian, et al., 1997: Quant. Def. of Exp. & Related Concepts]