CSB Investigates Fatal Hydrogen Sulfide Release at Catalyst Refiners Facility
A U.S. Chemical Safety Board report reveals safety lapses at Catalyst Refiners in April 2026, where a hydrogen sulfide leak resulted in two fatalities and multiple injuries. The investigation highlights inadequate safety protocols, with workers not required to use respirators or gas monitors during the decommissioning process.
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On April 22, 2026, a chemical reaction at the Catalyst Refiners facility led to the release of hydrogen sulfide, resulting in two deaths and 22 injuries. The U.S. Chemical Safety Board's investigation found that the facility lacked written chemical disposal procedures and did not require the use of respirators or personal gas monitors.
Emergency responders detected toxic gases, prompting a shelter-in-place order within a mile of the site. The CSB continues to investigate chemical hazards and the adequacy of protective equipment, emphasizing the need for clear safety procedures during facility shutdowns. The absence of required safety measures raises significant concerns regarding worker protection in hazardous environments.
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