Six Workers Die from Hydrogen Sulfide Exposure at Prospect Valley Dairy in Colorado
Six workers tragically died from hydrogen sulfide exposure at Prospect Valley Dairy in Weld County, Colorado, on August 20. The victims, ranging in age from 17 to 50, were responding to a confined space rescue when first responders detected dangerously high levels of the gas, which is often produced by decomposing manure. Agricultural safety experts noted that such a fatal incident involving multiple individuals from a single exposure is unprecedented.

On August 20, six workers died from hydrogen sulfide gas exposure at Prospect Valley Dairy in Weld County, Colorado. The victims were Oscar Espinoza Leos, 17; Carlos Espinoza Prado, 29; Noe Montanez Casanas, 32; Jorge Sanchez Pena, 36; Ricardo Gomez Galvan, 40; and Alejandro Espinoza Cruz, 50.
First responders from Southeast Weld Fire Protection District initially responded to a confined space rescue and noted high levels of hydrogen sulfide at the site. Agricultural safety experts reported that such a fatal incident involving six individuals from a single exposure is unprecedented in their experience. Hydrogen sulfide, or H2S, can be produced from decomposing manure and is known for its deadly potential in high concentrations.




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