Carbon Monoxide Mortality and Morbidity Message Board

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Pastimes : Carbon Monoxide Mortality and Morbidity

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From: Shoot1st	10/22/2005 11:12:30 AM
	of 265

Carbon monoxide scare in Valley Springs By Craig Koscho Thursday, October 20, 2005 8:16 PM CDT Fending off the autumn chill made three employees ill at the Chevron convenience store in Valley Springs and forced the closure of Highways 12 and 26. The workers were overcome by carbon monoxide fumes Monday afternoon when a heating unit was turned on for the first time this season. Emergency crews got a call shortly after 2 p.m. that the workers were ill and there was an odor in the area of the store on west Highway 26, Undersheriff Mike Walker said. Sheriff’s deputies and local firefighters cordoned off the store, evacuated the surrounding area and called the county’s Hazardous Materials Team. Dressed in protective gear, two team members entered the store and took air samples while two others waited outside. The samples were immediately tested in the team’s mobile unit and revealed levels of carbon monoxide ranging from 4 to 10 parts per million, sheriff’s Capt. Clay Hawkins said. That’s in keeping with the victims’ symptoms such as headache and nausea, Hawkins said, adding that the suspected culprit was a heater employees had used for the first time this autumn. Some health experts set a zero level carbon monoxide as safe, with the health hazard rising dramatically above 30 ppm. The team also checked for other contaminants, such as ammonias, acids, and fuels. “And everything was negative,” Hawkins said. Team members had completed their first test of the building and been decontaminated by 3:25 p.m. Hawkins said at that time they would vent the building then re-enter it and take another sample. The business center of Valley Springs was closed to through traffic during the incident. Blockades were placed at the Highway 12-26 intersection and just west of the store at Highway 26 and Hogan Dam Road. Contact Craig Koscho at ckoscho@calaverasenterprise.com.

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