SEAT is a simple environmental exposure assessment tool. It is meant for use in screening-level, conservative environmental exposure assessments, as a slightly more consistent approach than back-of-the-envelope calculations. It:
- calculates Predicted Environmental Concentrations (PECs) in surface waters, sediments and soils (but not the atmosphere or groundwater);
- is conservative, rather than realistic;
- treats chemicals as conservative tracers that do not degrade;
- makes conservative assumptions, such as the total released mass of a chemical goes to both waters and soils;
- is pragmatic in its data requirements, requiring only basic properties of the geographical region modelled;
- is open-source and licensed with a BSD-3-Clause license.
...is self-explanatory: Open up the spreadsheet and follow the instructions.