The National Atmospheric Release Advisory Center

The National Atmospheric Release Advisory Center (NARAC) is a set of services and tools of the Lawrence Livermore National Laboratory (LLNL) (Lawrence Livermore National Laboratory). NARAC allows authorized emergency managers from local, state, and federal levels of government to request assistance in the event of a release of a radiological, chemical, or biological agent into the atmosphere. NARAC uses state-of-the art dispersion modeling tools developed at LLNL to predict downwind concentrations and even the health consequences of releases. It displays downwind concentrations graphically on maps and even aerial photographs so that responders can view the downwind concentrations at various landmarks such as roads, buildings, and stadiums. It staffs an emergency hotline 24 hours a day, seven days a week for emergency managers to call for assistance. NARAC also has other tools and services such as software for emergency managers to perform modeling locally, training on that software, and support for conducting drills and exercises.

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