Missing grandmother believed to have fallen into sinkhole: Police

[Red-Coat]

I do not think it will be a rescue mission but a recovery mission as most likely at the bottom there is methane build up. She might of survived the fall but inhaled methane that sits in low pockets in abandoned coal mines.

The methane content in abandoned coal mines can range from 60–80%. The methane composition of abandoned mine methane (AMM) is typically stable and doesn't contain oxygen.


That is why there is no response. They found shoe most likely hers.


Crow

Even a 1-minute exposure to a high concentration of methane gas in a sealed room was enough to cause loss of consciousness.

I suspect if she had fallen into a collapsed mine shaft through a sink hole forming and she survived the fall she is dead with 60 seconds.

A sad deadly legacy from coal mining.

Crow

Pleasant Unity Volunteer Fire Department Chief John Bacha said there is still reason to be optimistic, however, as oxygen levels underground have been 'perfect,' with no carbon monoxide or explosive gases in the atmosphere.

The temperature in the mine to which the sinkhole is connected is also said to be much warmer (around 50 degrees) than the freezing air temperatures above ground.

Poor lady. I do hope they find her, but it's not looking good.

 

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[Gare]

It is just hard to imagine now days that people can fall into one of these sink holes and never be heard from or seen AGAIN EVER !!!

 

[Old Bookaroo]

Florida being one of the most places for sinkholes ... it is a major concern to many here... including me.

One story here that always creeps people out is this one...

https://www.cnn.com/2013/03/01/us/florida-sinkhole/index.html

ARC: I believe Florida has a limestone base - like the Yucatan Peninsula.

 

[xr7ator]

Reason #298 why I am not a cat person

Cats are cool but grandmas are even cooler. Sad story.