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Additional Information on Investigation of Five Deceased

Clarksville Police DepartmentClarksville, TN – As part of the ongoing investigation, Clarksville Police received the carbon monoxide levels inside of the camper trailer.  The measurements were provided by Clarksville Fire Department.

There was an initial reading taken just inside of the entry door; it registered 40 ppm. After the SCBA gear was donned, entry was made into the trailer and the highest reading registered 438 ppm.

Clarksville Police are still awaiting medical examiner results, but the investigation is ongoing.

What level of Carbon monoxide is toxic?

For most adults Carbon Monoxide (CO) becomes toxic when it reaches a level higher than 35 ppm (parts per million) with continuous exposure over an eight hour period. When the level of CO becomes higher than that a person will suffer from symptoms of exposure.

Mild exposure (a CO level between 35 ppm and 200 ppm) over 2-3 hours will produce flu-like symptoms such as headaches, sore eyes and a runny nose.

Medium exposure (a CO level between 200 ppm to 800 ppm) will produce dizziness, drowsiness and vomiting in as little as 1 hour. This level of exposure is deemed to be life threatening once three hours has passed.

Extreme exposure (a CO level of 800 ppm and higher) will result in unconsciousness, brain damage and death in as little as a few minutes. OSHA guidelines state that the maximum exposure over an eight hour time period is 35 ppm.

For more on the story, see:

Five Found Deceased at Clarksville Speedway
Clarksville Police release deceased names


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