Hot Car Dangers: Aerosol can explodes in vehicle in Brimfield - Western Mass News - WGGB/WSHM

Hot Car Dangers: Aerosol can explodes in vehicle in Brimfield

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(photo courtesy Brimfield Police Department) (photo courtesy Brimfield Police Department)

The mercury is on the rise ...and that means it can get dangerously hot inside cars. And while it is well known the hazards of leaving your children and pets, what about aerosol canisters?

Well, police in Brimfield are reminding drivers not to leave aerosol canisters in your vehicle after they responded to a reported explosion in a car. 

"The temperature can rise real fast, too," says Dan Brown, First Warning Meteorologist. 

Cars parked in the spring sun can quickly turn into ovens…raising the temperature in minutes.

"The temperature outside may be in the lower 80s, the temperature inside the car can heat up to 110, 120 degrees. Which can obviously be very dangerous," Dan notes. 

On Tuesday an A/C recharger exploded in the intense heat of this car in Brimfield. Shattered glass blew out the back of the car. 

"Cold air is less dense than warm air. So as the aerosol can begins to warm up the air begins to expand and expand and eventually the pressure builds up so much that that can just explodes," explains Dan. 

And that’s exactly what happened inside this car when the canister busted open and blew glass clear across a parking lot. 

It all happens with a little thing called the Ideal Gas Law. When temperatures go down, the volume goes down.

"It’s almost like the greenhouse effect, the sun, the solar radiation is going into the car. The sun, especially this time of year is so strong. It doesn’t even need to be that hot out," says Dan.

And the summer weather is just getting started...So be careful of what you leave behind the wheel. 

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