ALOHA
ALOHA (Areal Locations of Hazardous Atmospheres) is a modeling program that estimates hazard zones associated with accidental chemical releases.
A U.S. EPA consequence-modeling tool for estimating hazard zones from toxic, flammable, and explosive chemical-release scenarios.
About the Project
Why use this?
ALOHA is used to estimate hazard zones associated with accidental chemical releases, including toxic vapor clouds, fires, and explosions. It combines chemical-property data, release modeling, and atmospheric dispersion calculations to support emergency planning and consequence assessment.
Process-safety engineers use ALOHA for rapid screening of release scenarios, emergency-response planning, and consequence-analysis education. It is not open source, but it is free U.S. government software and is included here as a practical reference tool where a fully open-source consequence-modeling alternative is not yet mature.
Key Features
- Estimates hazard zones for accidental chemical releases
- Toxic, flammable, and explosive release scenarios
- Atmospheric dispersion and source-term modeling
- Useful for emergency planning and consequence screening
- Free U.S. EPA software with a graphical interface
- Reference / Repo
- https://www.epa.gov/cameo/aloha-software
- Tool / Hosted
- https://www.epa.gov/cameo/aloha-software
- Replaces / Alternative to
- Phast, SAFETI
- Free layer
- open-source