Patent ID: 7826976

Claim:
A method comprising: receiving, at a processor, first time-varying data containing information related to a property of a chemical, biological or radiological agent; receiving, at the processor, second time-varying data containing acoustics-related information; determining, at the processor, if the following conditions are satisfied: (i) the property information in said first time-varying data indicates that, at a time t 2 , said agent is likely to be present at a concentration that is higher than a normal background level of said agent; (ii) an acoustic signature that is indicative of release of said chemical, biological, or radiological agent is identified within said second timing-varying data at a time t 1 ; (iii) said times t 1 and t 2 are correlated; and generating an alert at an output device when conditions (i), (ii), and (iii) are satisfied.