The US is preparing for an expansion of pipelines for captured CO2.
Pipelines for CO2 transport the gas at high pressure and at a high enough concentration to make it an asphyxiant. The CO2 in the pipeline that ruptured was also mixed with hydrogen sulfide, but CO2 can still be harmful on its own. About 100 workers a year die from. It’s heavier than air, allowing a plume of it to sink to the ground and blanket a large area.
PHMSA proposed $3,866,734 in penalties on the operator of the pipeline that busted open in 2020, Denbury Gulf Coast Pipeline, for “probable violations.” After investigating the incident, PHMSA says that Denbury did not report to authorities “at the earliest practicable moment” after detecting the CO2 release. That hindered first responders who were left to guess what was going on after receiving reports from residents of “a green gas” in the area.
commissioned by the charity and advocacy group Pipeline Safety Trust that was published earlier this year.
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