Federal safety agencies announced Friday that they will conduct low-flying helicopter surveys over the Bay Area next week to measure naturally occurring background radiation.

The daily flights starting Monday and ending Saturday are part of a joint research project between the Department of Homeland Security’s Domestic Nuclear Detection Office and the National Nuclear Security Administration, the Energy Department agency that oversees the nation’s nuclear weapons stockpile.

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The information it gathers will be used by the agencies to “improve aerial radiation measurement capabilities” by local, state and federal entities, the announcement said.

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