METHODS AND MATERIALS FOR TRACKING MANMADE AIRBORNE PLUMES

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Tracers serve as a proxy for the presence of one or more target species, biological or chemical agents, in an airborne plume by mimicking the aerodynamic behavior of the target species. The tracers include rare-earth-doped luminescent particles. The target species are tracked by exciting the tracer luminescent particles and detecting a specific electromagnetic response therefrom. The tracers can be disposed in the airborne plume by deployment of munitions having such tracers.