Analytical Contaminant Transport Analysis System (ACTS)―Multimedia Environmental Fate and Transport

摘要

The analytical contaminant transport analysis system (ACTS) is a computational analysis platform designed to assist environmental engineers and health scientists with assessing and quantifying environmental multimedia fate and transport of contaminants within four environmental transport pathways- air, soil, surface water, and groundwater. ACTS contains more than 100 models and associated analytical solutions that are available in the public domain. The solutions are provided under a unified computational platform and are accessed through an easy to learn and easy to use graphical user interface. A powerful feature of this analysis system is the ability to conduct probabilistic analyses using one- and two-stage Monte Carlo simulation that is dynamically linked to all pathway modules. External routines or third-party software are not required to conduct Monte Carlo simulations in ACTS. Publication-quality output for simulation results can be developed using the presentation utilities included in ACTS for all pathway modules. To illustrate the capabilities of ACTS, three site-specific analyses are presented. A deterministic ("single-point") and a probabilistic analysis (two-stage Monte Carlo simulation) to assess the fate and transport of tetrachloroethylene in the groundwater pathway, and a probabilistic analysis of fate and transport of ethylene dibromide in a multipathway environmental assessment.