ALOHA
US EPA and NOAA (CAMEO)
Download from the vendor
www.epa.gov
A program for assessing hazardous chemical release scenarios. You enter the chemical, storage conditions, type of release and weather, and get threat zones for a toxic cloud, flammable gas, explosion and fire. The zones can be shown on a map through MARPLOT, Google Earth or ArcMap. Process and safety engineers use it for emergency planning, risk surveys and training. Limitation: the latest version dates from 2016 and it is an approximate model that does not replace a detailed dispersion study.
Ratings & Reviews
| Licence type | Completely Free |
|---|---|
| Licence terms | US government software (EPA and NOAA) offered as a free download directly from the EPA site, with no registration. The site shows no licence terms or usage restrictions. The latest version (2016) is no longer updated; the macOS build only supports up to OS X 10.11, so in practice it is a Windows program. |
| Platforms | Windows |
| Engineering field | Chemical Engineering, Environmental & Water |
| Tool type | Simulation & FEA |
| Vendor site | www.epa.gov |
This link goes to the vendor site. EngiFree hosts no installers and distributes no cracked versions.
Last verified: 2026-10-05
