LATEST: The Suncor Energy oil refinery in Commerce City released high levels of sulfur dioxide Wednesday morning after a malfunction, and those excess emissions could have caused residents to experience asthma attacks or have problems breathing.
The Suncor Energy oil refinery in Commerce City released high levels of sulfur dioxide Wednesday morning after a malfunction, and those excess emissions could have caused area residents to experience asthma attacks and have problems breathing while exercising or working outdoors.
The Colorado Department of Public Health and Environment announced the spikes in sulfur dioxide Wednesday evening, saying they were higher than normal but did not violate federal air quality standards. It is not known whether the release exceeded the amounts of emissions allowed by the refinery’s federal air permit.
The National Ambient Air Quality Standard for sulfur dioxide is 75 parts per billion per hour. Monitors operated by Cultivando, a nonprofit in Commerce City that advocates for improved air quality, detected one spike at 155 parts per billion and another at 186 parts per billion, according to a news release from the state health department.
Air monitors showed sulfur dioxide emissions had returned to normal levels by Wednesday afternoon, the agency said.
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