Obtain a copy of the "Guidelines for Hazard Evaluation Procedures" published by the Center for Chemical Process Safety of the American Institute of Chemical Engineers.
You may be able to order it online from this website:
Air Pollution Dispersion Modeling</a><br>Visit my website to learn about "Fundamentals of Stack Gas Dispersion", a most comprehensive book on dispersion modeling of continuous, buoyant air pollution plumes. The site has published peer reviews and the complete Table of Contents.[/sig]