Aerial testing for radiation ahead of marathon

Helicopters will be flying low over Boston, and it’s all tied to the Boston Marathon next Monday.

The helicopter will be covering about 13 square miles, and it will be flying relatively low.

According to the MEMA officials Twitter account, flights are canceled for Tuesday, and are tentatively planned for Wednesday and Thursday due to weather.

The helicopter will fly in a grid pattern at 150 feet or higher, at a speed of 80 miles per hour.

The chopper is from the National Nuclear Security Administration is equipped with radiation sensing technology and its purpose is to measure naturally occurring background radiation in the Boston area.

Flyovers will happen during the day.

Measuring naturally occurring radiation helps establish baseline levels and is a normal part of security and emergency preparedness.

Monday, the Massachusetts Emergency Management Agency had their final run through before Marathon Monday, making sure their plans are ready to go for race day.

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