Bostonians are being told that helicopters will be flying over their city at low altitudes for about a 10-day period (April 6-15). “The purpose of the flyovers is to measure naturally occurring background radiation,” the National Nuclear Security Administration said in a news release.
Those measurements, according to the NNSA, can be used to establish baseline levels of radiation in Boston for security and emergency preparedness. The assessment will cover about 25 square miles.
“NNSA is making the public aware of the upcoming flights so that citizens who see the low-flying aircraft are not alarmed,” the statement said.
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